BOSTON -- Alfredo Aceves walked into Red Sox manager Bobby Valentine's Fenway Park office after a 4-3 win over the Royals on Friday night and slammed the door behind him.
The right-hander did not pitch Friday, a day after he blew his seventh save of the season against the Angels in one of the toughest games the Red Sox have played this season -- a 14-13 loss in 10 innings.
But Andrew Bailey, the team's closer going into Spring Training who's been back less than a month, did pitch Friday -- in the ninth inning for his first save of the season.
Red Sox general manager Ben Cherington announced on Saturday that Aceves had been suspended for three games for conduct detrimental to the team, though the club did not confirm the cause of the suspension. Aceves' ban began immediately, with a night game against the Royals.
"It might have had something to do with that," Valentine said about Aceves' situation and whether it related to Bailey.
"It's nice to get back out there in the ninth," said Bailey, who missed most of the season after right thumb surgery, after his save. "Alfredo obviously threw a lot of pitches last night. I was probably one of the freshest down there. That's the way they probably wanted to go."
Aceves' is tied at seven for the most blown saves in the American League with A's rookie Ryan Cook. Aceves' rubber arm has been a boon for the Sox, but at 2-8 with a 4.60 ERA, he's also been less than a sure thing in the closer's role.
"So it's not that I pitched one pitch, and that we would lose because of that, no," Aceves said after giving up five runs to the Angels.
Aceves can return Tuesday when Boston starts a road trip in Anaheim.
I'm a little disappointed," Valentine said. "You've just got to know the difference between right and wrong. That's all we ask."
Evan Drellich is a reporter for MLB.com. Follow him on Twitter @EvanDrellich. This story was not subject to the approval of Major League Baseball or its clubs.