The Twins are pleased that the injury isn't serious.
"He had an MRI today, and structurally, everything came back pretty good," manager Ron Gardenhire said. "It's a jammed shoulder. But we don't know how long it's going to take. He's doing exercises right now to stretch it out, and he currently has some soreness."
Eduardo Nunez started in Escobar's place on Wednesday because he's had success against Tigers left-hander David Price. Nunez has faced Price more than any other pitcher and began the game with a .290/.353/.452 line in 34 plate appearances against him.
But Gardenhire plans on playing rookie Danny Santana more with Escobar out. Santana, a natural shortstop, has made just 23 starts at the position this season while starting 61 times in center field, including on Wednesday.
"Danny will get some playing time at shortstop while Esco is out, for sure," Gardenhire said. "It's the good and the bad. It's tough, because Esco has been so good for us at short, but it's good, because it gives Danny a chance to play some short right now."
Rhett Bollinger is a reporter for MLB.com. Read his blog, Bollinger Beat, and follow him on Twitter @RhettBollinger. This story was not subject to the approval of Major League Baseball or its clubs.