Woo (elbow) struck out five over three perfect innings in his first rehab start with Triple-A Tacoma on Sunday.
Woo needed just 35 pitches to cruise through his three frames in a difficult pitching environment in Las Vegas. The velocity on his four-seamer was down a bit at 93.9 miles per hour, but that's not overly concerning considering it was his first game action in more than a month. Woo is in line for multiple rehab starts but could be ready to rejoin the Mariners rotation by early May.