Swarzak is part of a Twins bullpen that has eaten up 471 2/3 innings this season, second only to Toronto (473 1/3) entering Tuesday's game.
Twins manager Ron Gardenhire was concerned about leaving Swarzak in for his final inning.
"He had thrown 55 pitches before that inning," Gardenhire said of the 70-pitch outing. "I just don't want him to hurt himself.
"It looked like he was getting a little tired, but his last two innings were pretty good. He told me he felt great, so we ran him back out for one more inning. And that helps. That saves a couple of other arms. That was a big inning."
Glenn Sattell is a contributor to MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.