All-Star right-hander Hisashi Iwakuma, who made his first rehab start of the season and pitched four innings for Triple-A Tacoma on Sunday, will next play on Friday, possibly for the Seattle Mariners.

"He'll (Iwakuma) pitch somewhere Friday. I'm not sure where yet," Mariners manager Lloyd McClendon said Tuesday, as Iwakuma rejoined the team and threw a bullpen session at Yankee Stadium.

A major league outing would mean Iwakuma would pitch against the Astros on the road at Houston, Texas. The Mariners have an opening in their rotation that day in Houston, according to MLB.com.

"I want to return quickly (to the major leagues) and contribute to the team," said Iwakuma. "My pitching is getting better and I really want to get myself into good shape."