Although the most explosive portion of fight night at Fenway Park occurred during the bottom of the second inning, after James Shields hit Coco Crisp with a pitch, the undercard was no less intriguing.

Before the start of the fifth inning, there was an issue in the Red Sox dugout. And it was caught on camera, replayed on NESN.

Kevin Youkilis and Manny Ramírez, who spent the offseason training together in Arizona, scuffled briefly before being separated. There was shouting, and Ramírez was trying to get at Youkilis while being restrained by trainer Paul Lessard and bench coach Brad Mills. They were pulled apart, and Ramírez was escorted into the tunnel that connects the dugout and the clubhouse.

But there were a lot of tight lips in the clubhouse once the game was over. Nobody wanted to reveal the reason for the altercation.