Mariners right-hander Taijuan Walker had to be scratched from what was supposed to be his final minor league rehab start Tuesday at Triple-A Tacoma and he headed to Seattle on Wednesday for tests.
The MRI results are in, according to Bob Dutton of the Tacoma News Tribune, and Walker has been diagnosed with a right shoulder impingement. He will be shut down from throwing for two weeks, and can now probably be ruled out through at least mid-May.
Walker was supposed to open the 2014 season as a member of Seattle’s starting rotation, but he battled shoulder problems all spring and landed on the 15-day disabled list before Opening Day.
The 21-year-old top pitching prospect registered an impressive 2.93 ERA, 1.196 WHIP, and 10.2 K/9 in 141 1/3 innings last season between the Double-A and Triple-A levels. He then made his MLB debut August 30.
Ken Rosenthal of The Athletic reports that the Twins have picked up free agent left-hander Martín Pérez on a one-year deal. Financial terms of the deal have yet to be announced, but it looks like a club option is included for the 2020 season. The Twins have not officially confirmed the signing.
Pérez, 27, missed 85 days of the Rangers’ 2018 campaign after undergoing elbow surgery on his non-throwing arm. He sustained the injury partway through the 2017 offseason; as the story goes, he was charged by a bull at his ranch in Venezuela and fell on his right arm as he was trying to get out of the animal’s path. (He later killed and ate said bull.) When he finally returned to the mound, he cobbled together a 2-7 record in 15 starts with a 6.22 ERA, 3.8 BB/9, 5.5 SO/9, and career-low -0.2 fWAR through 85 1/3 innings out of the rotation and bullpen.
As they approach the start of the 2019 season, the Twins will be looking for something a little more, well, bullish from Pérez. Prior to his injury, he turned in two solid seasons with the Rangers in 2016 and 2017, nearing the 200-inning threshold in both campaigns and providing a combined value of 4.2 fWAR at a time when Texas’ starters collectively ranked sixth-worst in the league.