White hit the ground hard and stayed on his back as trainers rushed to his aid. He eventually was helped up and finished the inning before the Twins replaced him.
Pelzer allowed a hit and walked two batters before recording an out on his own. Adam Donachie threw out a runner attempting to steal second before Pelzer induced a ground ball for a force at second base and struck out Justin Huber to end the rally.
The Twins continue to lead, 3-0, heading into the top of the eighth.
Jeremy Guthrie said he liked the way he executed his pitches today.
"I had a good slider finally after I hung the first one. I got it down," he said.
"I like the way I executed. The quality of pitches was much, much better today. I probably would have been better off had I missed the middle of the plate. They may have hit it at somebody instead of off the end. The execution was much, much better today. That's good, that's a positive.
"I really haven't felt that command the last game or in my bullpen, but today I felt comfortable that I can actually throw to both sides of the plate with a couple of different pitches. I threw the fastball and the slider as well to both sides. The next step from what I said last time definitely happened today, so that's a good thing."