Cosart works on delivery in bullpen session

TORONTO -- It didn't matter that rookie righty Jarred Cosart debuted with two solid starts. There's always room for adjustments, and pitching coach Doug Brocail worked with Cosart during his bullpen session on Friday to get him to square up his shoulders more during his delivery.

"He's got some inversion," Brocail said. "I said, 'Listen, your inversion and your hitch comes from you being across your body and it opens up your chest. Let's erase all that.' I put the rosin bag down [in front of him], which is dangerous, and I said, 'You have to be conscious and I want you to watch your land and then throw pitch."

And the results?

"From the first [pitch] to last -- boom, boom, boom, boom, boom -- great bullpen," Brocail said.

Cosart threw eight scoreless innings of two-hit ball in his Major League debut on July 12 against Tampa Bay, and threw seven innings and allowed one earned run on seven hits and three walks in his next start, Tuesday against the A's at Minute Maid Park. But Cosart, the seventh-ranked prospect in the Astros' system by MLB.com, said he's always willing to get better.

Cosart does throw across his body, which cuts himself off when he's pitching away to right-handed hitters.

"So we were just trying to square me up a little bit and keep me more in line, and it was awesome," he said. "Everything felt smoother, mainly the offspeed pitches. Hopefully I can take it into the next game and see how it feels and keep working on it in every bullpen, and hopefully it helps me have a long career."