Underneath that calm, quiet, stone-like exterior of Brad Boxberger is an inferno. At least that’s what his boss says.

“He has a lot of fire, man,” Rays manager Joe Maddon said.

Maddon might not have felt that fire, but he said he heard it when Boxberger returned to the mound in the 10th inning after blowing a save by allowing the Cubs to tie the score in the ninth.

The Rays took the lead in the 10th, which is why Boxberger tried to close out the game for the second consecutive inning. Maddon said Boxberger was the right pitcher for the job, and Maddon was comforted when he heard Boxberger “yelp” as he climbed the dugout steps.

“It was not necessarily animalistic, but it was definitely different coming from him,” Maddon said. “It was a noise. It was a sound. It was like pleasure, and for that I thought good was going to occur.”

It did.

Boxberger retired the Cubs in order and the Rays won 4-3 in 10 innings during their first game at Wrigley Field since 2003.

Kevin Kiermaier, who entered in the eighth inning as a pinch-hitter, singled home Desmond Jennings to give the Rays their second straight win and even their record on this 10-game road trip at 2-2.

“I was just happy to see us grind out a win,” Kiermaier said. “We need wins like these where our backs are against the wall.”

The Rays twice trailed by a run. They tied the score at 1-1 in the third inning when Jennings homered and tied it at 2-2 in the seventh when Sean Rodriguez tripled and scored on a fielder’s choice grounder by Curt Casali.

Then the Rays went ahead in the eighth inning when Matt Joyce delivered a pinch-hit single that scored Ben Zobrist.

Jake McGee was called upon to face the top of the Cubs order in the bottom of the inning and pitched around a leadoff single to send the game to the ninth inning.