Mariners Place Bryan Woo On Injured List

The Mariners placed Bryan Woo on the 15-day injured list due to a right hamstring strain before tonight’s loss in Tampa Bay. Seattle recalled reliever Collin Snider from Triple-A Tacoma to take the vacated active roster spot.

Woo left last night’s start in the fourth inning after experiencing the leg discomfort. The M’s sent him for imaging today. Woo told reporters he was diagnosed with a lower-grade variety of strain, though he wasn’t sure of the recovery timetable (X link via Ryan Divish of the Seattle Times).

It’s the second injured list stint of the season for the second-year righty. Woo started the year on the IL with elbow inflammation. He had another scare a couple weeks ago when forearm discomfort led the team to scratch him from a scheduled start and send him for testing. An MRI fortunately came back clean and Woo was able to make two more starts before the leg issue.

A hamstring strain is far less of a long-term concern than any elbow or forearm injury would be. It’s nevertheless a disappointing setback for a pitcher who has been amidst a potential breakout season. Woo owns a sparkling 1.77 ERA in 40 2/3 innings. While he’s running a modest 18.7% strikeout rate, he has only walked three out of 150 batters faced. Woo has only allowed three runs in two of his eight starts.

Manager Scott Servais was noncommittal on who will step into the rotation spot (link via MLB.com’s Daniel Kramer). The M’s have off days on Thursday and next Monday, so they could get by without a fifth starter until late next week. Emerson Hancock has been Seattle’s top depth arm, taking eight starts. The former sixth overall draftee has struggled to a 4.79 ERA while striking out 13.5% of opposing hitters. The M’s tabbed left-hander Jhonathan Diaz for a spot start when Woo was scratched a couple weeks ago, but Hancock would’ve been on short rest that day.