Atlanta United players who can be on the game-day roster for the season-opening game at Nashville:

Mo Adams

No.: 29

Position: Wingback, defensive midfielder

Age: 23

How acquired: Trade with Chicago in 2019

Twitter: @_moadams

Instagram: _moadams

2019 Appearances/Starts: 4/1

2019 Key stats: One goal

2020 Outlook: Likely a depth piece at wingback and defensive midfielder, though he did start at right fullback in the Champions League opening draw at Motagua.

Ezequiel Barco

No.: 8

Position: Midfielder

Age: 20

How acquired: Bought from Independiente in 2018

Twitter: N/A

Instagram: barco.ezequiel

2019 Appearances/Starts: 15/11

2019 Key stats: Four goals and three assists

2020 Outlook: A big season is expected from the Designated Player, who has yet to consistently show his quality because of inexperience in his first season and injuries in his second. Has most of the tools to be a great player for the team. Scored two goals in the preseason.

George Bello

No.: 21

Position: Fullback/wingback

Age: 18

How acquired: Homegrown signing ahead of 2018 season

Twitter: @_georgebello

Instagram: _georgebello

2019 Appearances/Starts: 0/0

2019 Key stats: 12 appearances with Atlanta United 2

2020 Outlook: He was supposed to be last year's starter until injuries curtailed that, so this is an important season for him. He suffered another injury, this time a concussion, this preseason that forced him to miss Tuesday's game. He's fast, intelligent, good with the ball and has gotten much stronger. Expect at least 15 starts.

George Campbell

No.: 32

Position: Centerback

Age: 18

How acquired: Homegrown signing ahead of 2020 season

Twitter: @GeorgeC1927

Instagram: _georgecampbell_

2019 Appearances/Starts: 0/0

2019 Key stats: 22 appearances with Atlanta United 2

2020 Outlook: He likely won't get many starts with Atlanta United in league games, but may see time at end of games and in early U.S. Open Cup games. … Big, fast and good with the ball at his feet. He has all the tools to form a great partnership with Miles Robinson in 2021.

Edgar Castillo

No.: 19

Position: Fullback/wingback

Age: 33

How acquired: Signed in January

Twitter: N/A

Instagram: N/A

2019 Appearances/Starts: 20/20 with New England

2019 Key stats: Five assists

2020 Outlook: An attacking fullback with vast experience in LIGA MX that should help in Champions League, he's expected to split time with Bello. He has an impressive 10 assists in 48 appearances in MLS with Colorado and New England. He missed part of the preseason and Tuesday's game because of a rib injury.

Manuel Castro

No: TBD

Position: Winger

Age: 24

How acquired: Loan with option to buy from Estudiantes in Argentina

Twitter: N/A

Instagram: N/A

2019 Appearances/Starts: N/A

2019 Key stats: Fourteen starts with one goal for Estudiantes

2020 Outlook: Expected to compete at right wingback with Brooks Lennon and as a right midfielder when the team plays with four at the back.

Franco Escobar

No.: 2

Position: Centerback/Fullback/Wingback

Age: 24

How acquired: Bought from Newell's Old Boys in 2017

Twitter: @francoescobar

Instagram: franco.n.escobar

2019 Appearances/Starts: 25/22

2019 Key stats: Two goals and three assists in regular season and playoffs

2020 Outlook: Though he has said he thinks of himself as a centerback, he has shone as a wingback for the team, where his speed is best used. His versatility makes him perfect for Frank de Boer because he can play in a three-man centerback line or as a fullback or wingback without needing a sub.

Brad Guzan

No.: 1

Position: Goalkeeper

Age: 35

How acquired: Signed on a free transfer from Middlesbrough in England

Twitter: @bguzan

Instagram: bguzan

2019 Appearances/Starts: 34/34

2019 Key stats: Tied for the league lead with 14 shutouts

2020 outlook: He will again be the man in goal for the team.

Emerson Hyndman

No.: 20

Position: Defensive midfielder, center midfielder, attacking midfielder

Age: 23

How acquired: Loan-to-buy purchase from Bournemouth in England completed in Dec. 2019

Twitter: @emersonhyndman

Instagram: ehyndman_96

2019 Appearances/Starts: 15/10

2019 Key stats: One goal and three assists in league games

2020 outlook: He wasn't bought and given a multi-year contract to be a pool player. Hyndman likely will start somewhere in the central midfield. He makes intelligent runs into the penalty box during attacks and is sound positionally on defense.

Adam Jahn

No.: 14

Position: Striker

Age: 29

How acquired: Bought from Phoenix Rising in USL in January

Twitter: @AdamJahn14

Instagram: adamjahn14

2019 Appearances/Starts: 33 appearances with Phoenix

2019 Key stats: 17 goals

2020 Outlook: He won't start many league games, but could be seen often late in games, particularly if Atlanta United is trailing because he is 6-foot-3 and is a good target for crosses and set pieces.

Alec Kann

No.: 25

Position: Goalkeeper

Age: 29

How acquired: Selected in 2016 expansion draft

Twitter: @akann90

Instagram: aleckann

2019 Appearances/Starts: 0/0

2019 Key stats: Four starts with Atlanta United 2

2020 outlook: Likely to start U.S. Open Cup matches.

Jeff Larentowicz

No.: 18

Position: Defensive midfielder/centerback

Age: 36

How acquired: Signed as a free agent in December 2019

Twitter: N/A

Instagram: N/A

2019 Appearances/Starts: 27/15

2019 Key stats: Six shutouts among his 15 starts

2020 Outlook: Fifteen starts in league games seems another reasonable expectation. Very sound at winning first and second balls, and anticipating and filling in gaps in the formation.

Brooks Lennon

No.: 11

Position: Fullback/wingback/wide midfielder

Age: 22

How acquired: Trade with Real Salt Lake in Dec. 2019

Twitter: @brookslennon

Instagram: brookslennon

2019 Appearances/Starts: 28/16

2019 Key stats: One assist with Real Salt Lake

2020 Outlook: Lennon was wanted by Atlanta United for some time, making it unlikely that he was seen as Julian Gressel's replacement. Now that Gressel is gone, it seems that Lennon is a candidate. He's fast on the wings, but needs to work on his crosses.

Josef Martinez

No.: 7

Position: Striker

Age: 26

How acquired: Loan-to-buy purchase from Torino competed in February 2017. Last season Martinez was given a new contract.

Twitter: @JosefMartinez17

Instagram: josefmartinez17

2019 Appearances/Starts: 29/29

2019 Key stats: 27 goals, four assists in league games

2020 outlook: If Pity Martinez plays like he did in the last season's final months, and Barco can stay healthy, Josef Martinez should get more opportunities to score because they will be the providers. Of course, they could also take some of his goals. Martinez won't care if the team is winning.

Pity Martinez

No.: 10

Position: Midfielder/Striker

Age: 26

How acquired: Bought from River Plate in January 2019

Twitter: N/A

Instagram: pity_martinez

2019 Appearances/Starts: 32/26

2019 Key stats: Five goals and nine assists

2020 Outlook: He wants to play in Europe. Atlanta United likely won't sell him if it doesn't make a profit. So, Martinez, who will turn 27 this summer, needs to play well. As if that's not enough pressure, he may need to have an excellent first few months before the summer transfer window opens. He's more than capable. He showed his quality in the final one-third of last season after admitting that he felt pressure early last year. At least 10 goals and 10 assists seems probable.

Fernando Meza

No.: 6

Position: Centerback/fullback/defensive midfielder

Age: 29

How acquired: Bought from Necaxa and Tijuana in January

Twitter: N/A

Instagram: fermeza6

2019 Appearances/Starts: NA

2019 Key stats: Fifteen starts with Necaxa in LIGA MX Apertura

2020 Outlook: Likely to start beside Miles Robinson at centerback in place of Leandro Gonzalez Pirez. Atlanta United likes that Meza is good with the ball at his feet. Vice President Carlos Bocanegra compared him with former Atlanta United captain Michael Parkhurst.

Brendan Moore

No.: 13

Position: Goalkeeper

Age: 27

How acquired: Signed in Jan. 2019

Twitter: @Brendan_Moore24

Instagram: itsbrenmoore

2019 Appearances/Starts: 0/0

2019 Key stats: Nine starts with Atlanta United 2 last season

2020 outlook: Likely to continue earning starts with Atlanta United 2.

Jake Mulraney

No.: 23

Position: Winger

Age: 23

How acquired: Bought from Hearts in Scotland in January 2020

Twitter: N/A

Instagram: jake_mulraney

2019 Appearances/Starts: N/A

2019 Key stats: 17 starts in Scottish Premiership with one goal and two assists

2020 outlook: Likely a depth piece and spot starter. He is very fast and can put in good crosses.

Luiz Fernando Nascimento

No.: 31

Position: Midfielder

Age: 22

How acquired: Signed from Atlanta United 2

Twitter: @LuizNascimento

Instagram: lf.n97

2019 Appearances/Starts: N/A

2019 Key stats: 32 appearances, including 27 starts, with Atlanta United 2 last season

2020 Outlook: Probably will continue to play with Atlanta United 2, with spot starts for Atlanta United in the U.S. Open Cup.

Eric Remedi

No.: 5

Position: Defensive midfielder

Age: 24

How acquired: Bought from Banfield in Argentina in June 2018

Twitter: @Eric_Remedi

Instagram: eric_remedi

2019 Appearances/Starts: 28/25

2019 Key stats: 10 shutouts in his starts

2020 Outlook: Larentowicz moved into the starting role near the end of the 2019 season, but expect Remedi to move back into the starting role early in the season. The two will likely split time as starters.

Miles Robinson

No.: 12

Position: Centerback

Age: 22

How acquired: Selected with No.2 pick in 2017 draft

Twitter: @_milesrobinson_

Instagram: _milesrobinson_

2019 Appearances/Starts: 34/33

2019 Key stats: Finished top five in MLS Defender of the Year voting in helping Atlanta United post a goal difference of 15

2020 Outlook: Last year was his first as a full-time starter, and he became arguably the best one-on-one defender in MLS. Another season like that, and it seems likely that clubs in Mexico and Europe may come calling.

Matheus Rossetto

No.: 9

Position: Midfielder

Age: 23

Twitter: N/A

Instagram: Rossetto

2019 Appearances/Starts: N/A

2019 Key stats: Made five appearances for his previous club in Brazil, Atletico Paranaense, as part of 84 since 2015. He finished with five goals and five assists

2020 Outlook: Remains to be seen where he will play when the team plays three at the back. With four, he likely will be a midfielder.

Anton Walkes

No.: 4

Position: Centerback/fullback

Age: 22

How acquired: Bought from Portsmouth in England's League One

Twitter: @AntonWalkes

Instagram: antonwalkes

2019 Appearances/Starts: N/A

2019 Key stats: 11 starts with Portsmouth in 2019-20 season

2020 Outlook: Walkes can play as a centerback, fullback or wingback, making him very valuable.