CLEVELAND -- Fans may have noticed all kinds of confusion between Royals reliever Wily Peralta and rookie catcher Meibrys Viloria during the eighth inning of a 10-5 loss to the Indians on Friday night at Progressive Field.

Peralta stepped off the mound repeatedly, and Viloria made two mound visits during the one inning of work by Peralta, who gave up three runs to turn a 7-5 deficit into the game's final margin. The confusion seemed to stem from the signs, which had to be changed when the Indians got a runner on second base.

By the second mound visit, the crowd began to boo at all the delays. And worse, Royals manager Ned Yost seemed visibly perturbed in the dugout.

“I don’t know what it was,” Yost said afterward. “I didn’t ask them.”

Peralta said the misunderstanding was simply over changing the signs.

“We had a hard time getting on the same page with the signs,” Peralta said. “I didn’t want to cross him up. We were just not on the same page.

“He’s a young catcher just trying to do a good job.”

Said Viloria, “He told me when I came out the second time that he doesn’t see the signs, so he told me to slow down.”

Later in the inning, though, after center fielder Bubba Starling made a great catch and threw offline to home plate, Peralta, who had been backing up Viloria, appeared to shout at Viloria on his way back to the mound.

“I don’t know why he was mad,” Viloria said.

But Peralta said he wasn’t upset.

“No. We just switched the signs to an easier one,” Peralta said. “I was just talking over the crowd. I don’t get mad.”