Jarred Cosart has struggled with his control at Triple-A, walking 50 batters in 93 innings, but the Astros have decided that the 23-year-old right-hander is ready for the majors and he’ll make his debut tomorrow against the Rays.
Cosart was acquired from the Phillies as part of the haul for Hunter Pence in 2011 and MLB.com ranked him as the No. 89 prospect coming into the season. Aside from the spotty control he’s pitched very well at Triple-A with a 3.29 ERA and 93 strikeouts in 93 innings, holding opponents to a .213 batting average.
Cosart has electric raw stuff, throwing a heavy mid-90s fastball that generates tons of ground balls and very few homers. He hasn’t fared particularly well of late, allowing five runs and four walks in his final Triple-A start last week, and the Rays are a relatively tough debut matchup with the fifth-best offense in the league.
The Giants have acquired All-Star infielder Eduardo Nunez from the Twins in exchange for minor league pitcher Adalberto Mejia, the club announced on Thursday night.
Nunez, 29, went 0-for-4 in Thursday night’s game against the Orioles. He’s hitting .296/.325/.439 with 12 home runs, 47 RBI, 49 runs scored, and a league-best 26 stolen bases in 391 plate appearances this season. Nunez has played mostly at shortstop this season, but has also logged significant time at third base and a handful of games at second base, so he’ll give the Giants some versatility.
Nunez will likely play a lot of third base for the Giants as Matt Duffy is still sidelined with a strained left Achilles. He’s earning $1.475 million this season and will enter his third and final year of arbitration eligibility heading into 2017.
Mejia, 23, was considered the Giants’ seventh-best prospect by MLB Pipeline. He earned a promotion to Triple-A Sacramento last month after posting a 1.94 ERA with Double-A Richmond. In seven starts with Sacramento, he has a 4.20 ERA with a 43/11 K/BB ratio in 40 2/3 innings.
With a roster spot open, the Twins called up infield prospect Jorge Polanco from Triple-A Rochester, per MLB.com’s Rhett Bollinger.
Bob Nightengale of USA TODAY reports that the Mariners have received “strong” trade interest for starter Taijuan Walker. The right-hander is currently on the mend from tendinitis in his right foot. He’ll throw a bullpen on Friday at Wrigley Field with scouts in attendance.
Walker, 23, has a 3.66 ERA with an 80/18 K/BB ratio in 86 innings this season. It’s his first bit of sustained success at the major league level. What’s arguably just as intriguing is the fact that Walker will be under team control through 2020.
The Mariners have been hovering around .500 for the last month and entered Thursday six games behind the first-place Rangers in the AL West and 4.5 games out of the second AL Wild Card slot, behind three other teams as well as the two Wild Card leaders. It’s enough uncertainty which could push the Mariners to sell.