The Braves are convinced there's something wrong with ace-to-start-the-year Julio Teheran. But the right-hander insists it's not physical.

"If there's anything wrong with my arm, I wouldn't want to be out there and do something to make it worse," he told the Atlanta Journal-Constitution.

Fredi Gonzalez and pitching coach Roger McDowell met on Wednesday with Teheran, who assured them he's healthy. Gonzalez believes his primary problem is pitch selection. And he plans on Teheran turned around in that area.

"He manages his fastball, both sides of the plate, elevates it and sinks it and his other stuff is off the fastball," Gonzalez said. "For whatever reason in the last couple starts he's doing it the other way around. (Thursday) when he throws his side (session) he's got to get back to that: four-seam (fastball), two-seam and locate his fastball and pitch off of his fastball."