"We'll know more later, but he's got an inflamed tendon in his hand and he can't swing. He tried some swings today and the bat came out of his hand every time," manager Ron Gardenhire said. "That's not good news. He can't grip the bat, so that doesn't bode well for playing baseball."
Cuddyer hadn't yet seen a team doctor or gotten any tests done, but Gardenhire said he would definitely not be playing in Saturday's game and should be considered day-to-day.
Cuddyer couldn't trace the injury back to a specific play, saying he had "no earthly idea why it started hurting," but it is unrelated to the hand injury that put him on the disabled list earlier this season. He said the hand had been bothering him for a couple of weeks, but this is the first day he has felt unable to play with it.
"It's been sore for a while now, and I just figured it would go away, but I took a swing last night on that last at-bat before I got the hit and I grimaced and my hand flew off the bat," Cuddyer said. "I knew things weren't well and I woke up this morning and it was worse."
Infielder Alexi Casilla was dealing with a finger issue of his own on Saturday after jamming it while diving into first base on Friday.
The middle finger on Casilla's left hand was still sore and swollen Saturday morning, but he was adamant that he would play on Sunday.
"Alexi's kind of day-to-day. He's not going to do too much today, but there's a possibility that I could put him in the ball game if I need him," Gardenhire said. "I think he could probably go out there and play."
Along with Cuddyer and Casilla, reliever Dennys Reyes is still working through a medial right knee strain. Reyes planned on throwing before the game to test the knee out, but Gardenhire said he was unavailable for Saturday's game.
Leslie Parker is a contributor for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.