Thoughts of last season flashed through the mind of Shin-Soo Choo when a Luis Perez pitch whizzed past his head in the 15th inning of the Indians' 7-4 loss to the Toronto Blue Jays Thursday.

He had been hit by a pitch in the third inning, so he was in no mood to passively step back into the batter's box. Instead, he began walking toward the mound. Benches cleared, and Jays catcher J.P. Arencibia jumped in front of Choo to calm him.

Nobody was ejected, even though umpires warned both benches after Justin Masterson threw inside to Kelly Johnson in the fourth inning.

"It's Opening Day, there's a lot of adrenaline going," Indians manager Manny Acta said. "The ball was up by his head. The kid had no intention of hitting Choo, but he missed a lot of time last year."

Choo was hit by a pitch that broke his thumb in late June, and he didn't return to the lineup for almost seven weeks.

"I didn't want to go to the mound, but when the pitch is near your head, it's a different story," Choo said. "Because of the broken thumb, I'm a little sensitive right now. Pitchers need to throw inside; I understand that.

"But when I saw that ball coming at my head, I thought about last year."