The Rangers starting pitcher exchanged words with Rasmus during the fifth inning of Texas' 4-1 loss Saturday. Lewis was irked when Rasmus laid down a two-out bunt single with the Blue Jays up 2-0 and the Rangers playing the shift.
"I told [Rasmus] I didn't appreciate it," Lewis said, according to MLB.com. "You're up by two runs with two outs and you lay down a bunt. I don't think that's the way the game should be played."
Lewis, who fell to 6-7 with the loss, felt Rasmus' bunt was a selfish act.
"I felt like you have a situation where there is two outs, you're up two runs, you have gotten a hit earlier in the game off me, we are playing the shift, and he laid down a bunt basically simply for average," Lewis said.
On top of the bunt, Lewis said the fact that Rasmus didn't try to steal second base further proved he was just concerned about upping his average.
"[Rasmus] didn't steal within the first two pitches to put himself in scoring position," Lewis said. "That tells me he is solely looking out for himself, and looking out for batting average. And I didn't appreciate it."
After the game, Rasmus said he was trying to help his team and did not understand why Lewis took offense.
"I'm just trying to help my team and he didn't like it -- so sorry about it," Rasmus said, according to MLB.com. "I'm not here to try to please the other side, I'm here to help my team, and I had an opportunity where I could, and I took advantage of it."
Rasmus went 2-for-4 on the day. He is hitting .223 this season.