The Red Sox manager's fifth ejection of the season brought him a standing ovation when he laid into first-base umpire Dan Bellino in the fifth inning of an 8-6 win over the Royals.
Valentine thought the crowd's reaction inspired the Red Sox.
"I was still steaming, but I think they got the team excited," the manager said. "When they got on their feet, the team wanted to keep them on their feet and that was good."
With the Red Sox trailing, 4-3, Bellino called Dustin Pedroia out at first on a grounder to third with one out and one on. Royals third baseman Tony Abreu's throw appeared to have taken first baseman Eric Hosmer off the bag, and Pedroia looked like he beat the throw anyway.
"The game is hard for [the umpires], the speed of the game is pretty fast," Pedroia said. "They missed that call, it happens."
Jacoby Ellsbury, who took second on Pedroia's out, stole third base during the at-bat of Cody Ross, who followed Pedroia. Ross worked a walk, and newly acquired James Loney knocked an RBI single to bring home Ellsbury to tie the game at 4.
In the sixth, the Red Sox took a 5-4 lead on Ellsbury's two-out RBI single. Boston scored two more in the seventh before Pedroia added a solo homer in the eighth to seal the victory.
Austin Laymance is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.