Neither player has reported to summer camp yet. The team didn't specify what their injuries were. The White Sox do have two unnamed players who tested positive for the coronavirus and have been isolating, they said last Sunday.
Moncada had a breakout 2019, hitting .315 with 25 homers, 79 RBIs and a .915 OPS in 132 games.
Ruiz had a 5.63 ERA in 40 appearances for the White Sox last season.