Warren was placed on the 10-day injured list Friday with a right forearm strain. Warren apparently sustained the injury Friday when he allowed one run over two scoreless frames, an appearance which included a hit batter and a wild pitch. The severity of the injury remains unclear, but the 31-year-old will be eligible to return June 18.
Warren (4-1) pitched two innings in Friday's 5-4 victory over the Nationals. He allowed one run on one hit and received the win. The reliever has had a rocky season with a 5.34 ERA and 1.40 WHIP through 25 appearances in his first year with San Diego. He has recorded three holds and struck out 25 batters in 28.2 innings.
Warren was dealt to Seattle in exchange for international bonus pool money on Monday, Ken Rosenthal of The Athletic reports. The Mariners acquired a second reliever in the span of an hour after trading for Zach Duke from the Twins earlier. Warren has missed some time due to a back injury this year, but has appeared in 24 games for the Yankees nonetheless. Across 30 innings, he's logged a 2.70 ERA and 1.27 WHIP with a 37:12 K:BB, though he has allowed six earned runs in 10 innings of relief this month. Look for him to take on a middle reliever role with the Mariners.
Warren (back) was activated from the 10-day disabled list ahead of Game 2 of Monday's doubleheader against the Tigers. Warren hasn't pitched since April 20 due to a back injury, but he's been cleared to return after getting through three scoreless innings in his final minor-league rehab appearance last week with no issues. He'll take the roster spot of Tommy Kahnle, who was sent to the minors in a corresponding roster move. Prior to landing on the shelf, Warren compiled a 3.24 ERA and 11:4 K:BB across 8.1 innings of relief this season.
Warren (back) could be activated ahead of Monday's doubleheader with the Tigers, Brendan Kuty of NJ.com reports. Warren was stellar Wednesday in his second rehab outing at Double-A Trenton, striking out three over three scoreless innings while yielding just one hit. Now that he has had a few days to recover from that elongated relief appearance, Warren looks ready to return from the disabled list, but it's possible the Yankees decide to wait on the transaction since the bullpen hasn't been overworked of late.