Showalter said Gonzalez would be available today in relief of Gausman, but Gonzalez also gives the club options in case right-handers Chris Tillman and Bud Norris cannot make their next starts.

Tillman, who walked five batters in five innings and allowed three runs and four hits in Sunday's 5-2 loss to the Houston Astros, threw a bullpen session Tuesday, but Showalter said he has “a little groin tenderness.

“I think that's going to manage well,” Showalter said. “But I want to make sure we're covered for him and Bud, depending on if the league decides to do something there [with a suspension], that we're covered pitching-wise there.”

Showalter said he hadn't heard any indication from Major League Baseball that Norris could face additional discipline from his eighth-inning ejection for hitting the Tigers' Torii Hunter on Monday night.

Gonzalez said he expects to return to the rotation, though he doesn't know when.

“It might be Friday, Saturday, Sunday,” Gonzalez said. “It depends on how the other guys are feeling.”

Bundy throws to live hitters in Sarasota

Orioles pitching prospect Dylan Bundy, who underwent Tommy John surgery in June to repair the injured ulnar collateral ligament in his right elbow, took another step in his rehabilitation Tuesday in Sarasota, Fla., when he faced live batters for the first time.

Showalter said it was a hybrid simulated game and live batting practice session, and the right-hander threw 20 pitches. Bundy, 21, reached 93 mph in the session, according to Showalter.

“Everything went real well, threw all his pitches,” Showalter said.

Around the horn

Catcher Caleb Joseph picked up his first career major league hit in the bottom of the fourth inning when he lined a fastball from Tigers left-hander Drew Smyly on an 0-1 count to center field. … Outfielder Henry Urrutia had successful sports hernia surgery Tuesday in Philadelphia He is expected to be out of minor league action for six to eight weeks. … Outfielder Nolan Reimold (neck) is participating in all baseball activities now, but he has yet to play in a game. He is eligible to come off the 60-day disabled list May 29. … Left-hander Johan Santana (left shoulder) will pitch in an extended spring training game Friday. … Left-hander Eduardo Rodriguez (left knee sprain) will throw four innings in Sarasota today. … Right-hander Edgmer Escalona (right shoulder) also threw in a live batting practice session Tuesday and was fine, Showalter said. … Right-hander Luis Ayala (neck) has been removed from Norfolk's disabled list and transferred to Double-A Bowie.

Baltimore Sun reporter Dan Connolly contributed to this article.