Over his last 13 games, Carroll is batting .388 (19-for-49) with 12 runs and a .455 on-base percentage.
But Twins manager Ron Gardenhire said he wanted Casilla to get some playing time, as he was making just his second start since Friday.
"Everybody has to play here," Gardenhire said. "He's played well in his last couple of games here; he seems to do well in this role. So mix 'em up. We just have to keep mixing them up and give everybody an opportunity here."