The below lineups are pretty speculative. The Mets deployment is probably pretty close to correct, but the Brewers lineup card is still up in the air, as they may be platooning at as many as four positions — five if you count DH, but yeah that's former Met Gary Sanchez expected to be hacking against José Qunintana.
There's also some question about Sal Frelick, who played outfield when he came up last season, but has been seeing time at third of late. It's unclear whether he'll be in right on Opening Day, at third, or on the bench, but a quick review of their beat writers and their twitter users (kill me now) suggests that the last scenario.
 |  | ||||
|---|---|---|---|---|---|
| # | Player | Pos. | # | Player | Pos. |
| 1 | Jackson Chourio (R) | rf | 1 | Brandon Nimmo (L) | lf |
| 2 | William Contreras (R) | c | 2 | Francisco Lindor (S) | ss |
| 3 | Christian Yelich (L) | lf | 3 | Pete Alonso (R) | 1b |
| 4 | Rhys Hoskins (R) | 1b | 4 | Jeff McNeil (L) | 2b |
| 5 | Willy Adames (R) | ss | 5 | Starling Marte (R) | rf |
| 6 | Gary Sánchez (R) | dh | 6 | D.J. Stewart (R) | dh |
| 7 | Andruw Monasterio (R) | 2b | 7 | Francisco Álvarez (R) | c |
| 8 | Joey Ortiz (R) | 3b | 8 | Brett Baty (R) | 3b |
| 9 | Blake Perkins (L) | cf | 9 | Harrison Bader (R) | cf |
| Freddy Peralta (R) | sp | José Quintana (L) | sp |
