Red Sox signed LHP Rafael Perez to a minor league contract.
Perez is still building strength following shoulder surgery, so Ian Browne of MLB.com hears that he will likely report to Double-A Portland and work his way up from there. The 31-year-old southpaw owns a 3.64 ERA over 338 relief appearances in the majors, so he's a worthwhile flier for Boston.
Diamondbacks general manager Kevin Towers said Thursday that Adam Eaton will "probably" get a second opinion on his left elbow from Dr. James Andrews in the coming days.
Eaton was recently pulled off his minor league rehab assignment due to renewed discomfort in his elbow. Towers said an MRI showed fluid around his ulnar collateral ligament, but no new damage was found. As of now, he's expected to rest for 2-3 weeks before restarting his rehab program, but he'll get Andrews' opinion just to be on the safe side.
Jordan Bastian of MLB.com reports that left-hander Rafael Perez is expected to sign with the Red Sox.
Perez, who had shoulder surgery last September, was released by the Twins last week. He's presumably getting a minor league deal and could be an option for the major league bullpen down the road.
Ivan Nova (triceps) could be activated from the disabled list early next week.
Yankees manager Joe Girardi was vague about a possible timeline for Nova when asked Wednesday, but general manager Brian Cashman said Thursday that he is the closest to returning among the team's injured players. However, it isn't clear whether he'll do so as a member of the starting rotation.
Orioles designated RHP Alex Burnett for assignment.
The move clears a spot for Kevin Gausman on the 40-man roster. Burnett made two appearances with the Orioles earlier this month and owns a 1.86 ERA and 8/1 K/BB ratio over 9 2/3 innings in Triple-A. He could draw interest on waivers.
Darin Mastroianni underwent surgery Thursday to repair bone chips on his left ankle.
The best-case scenario is that Mastroianni will resume weight-bearing activities in three weeks. However, he's expected to be sidelined until the second half of the season.
Orioles purchased the contract of RHP Kevin Gausman from Double-A Bowie.
Gausman will make his major league debut Thursday night against the Orioles. The 22-year-old has only made 13 starts in the minors, but owns an impressive 3.23 ERA and 62/6 K/BB ratio in 61 1/3 innings. With his ability to miss bats and pound the strike zone, he's well worth owning in mixed leagues.
Orioles optioned RHP Jake Arrieta to Triple-A Norfolk.
Arrieta was called up from the minors over the weekend, but didn't make an appearance with the club. He's slated to pitch as a starter in Triple-A. Kevin Gausman will replace him on the active roster.