Boston Red Sox pitcher Clay Buchholz threw a successful bullpen session on Monday, showing no ill effects of a hamstring strain he suffered last week.

The right-hander threw 10 pitches in front of the mound, then another 35 from the rubber. He’s expected to throw a live batting practice session on Wednesday.

“Buchholz had a successful bullpen today,” said Red Sox manager John Farrell. “He threw all his pitches, no restrictions. He’s not cleared for full baseball activity, but his mound session was good.”

Buchholz suffered the injury during fielding drills on the first day of workouts for pitchers and catchers last Tuesday. Since, he’s played catch and long toss and Monday was his first time off the mound.