Martinez had surgery on his left hamstring and is expected to return in early June.

He missed 35 games after straining his left hamstring June 25.

However, he did not participate due to a strained left hamstring.

He missed three games in November due to a strained left hamstring.

Walk (6-4) pitched for the first time since he pulled his left hamstring on June 8.

Sierra has not played since July 18, when he strained his left hamstring.

He missed the month of July with strained left hamstring.

He had been on the disabled list since June 15 with an injured left hamstring.

Then, in the afternoon practice, he pulled his left hamstring and sat out.

Matthews had to leave the game in the second half after his left hamstring started to tighten up.