Rodriguez had seemed to be in a daze after being hit on the hand by an errant Felix Hernandez changeup on Tuesday, but after being fitted for a splint on Wednesday, Rodriguez vowed that he will return to the lineup as a force.
Rodriguez is scheduled to see team physician Christopher Ahmad on Thursday in New York and could miss at least four weeks. The Yankees have not announced an official timetable for his return.
"I've got to talk to Ahmad, but I certainly expect to come back and come back strong," Rodriguez said. "The one good thing here is that we play through the end of October."
Rodriguez added that the disappointment of his injury has been "hard to put into words." Rodriguez, who will turn 37 on Friday, has now landed on the disabled list at least once each season since 2008.