Brad Ausmus believes that Johnny Cueto's sometimes-funky delivery is illegal.

Ausmus complained to plate umpire Joe West that Cueto's delivery was illegal and later offered his thoughts to reporters on Monday night. The Detroit Tigers manager believes that the Kansas City Royals hurler sometimes stops his delivery.

"Really, the way the rule reads, you're not supposed to even alter your motion," Ausmus said. "That's the way the rule reads. They don't enforce it. Well, he said if he stops it's an illegal pitch."

Cueto threw a four-hitter against the Tigers on Monday night.

"Cueto didn't miss in the heart of the plate too much tonight," Nick Castellanos said. "He did a good job of working in and out, up and down, changing speeds, and holding and shaking and quick pitching."