placed starting pitcher Sean Manaea on the 10-day disabled list with a left shoulder impingement Billy Williams Jersey , the team announced Sunday.The San Francisco Chronicle's Susan Slusser reported Manaea is set to undergo an MRI in the Bay Area to determine the severity of the injury.Manaea is 12-9 with a 3.59 ERA in 27 starts this season.Slusser had previously noted his velocity was trending downward for some time, which can be an indication of shoulder issues.According to Brooks Baseball, he's averaging 90.6 mph on his fastball in August, which is a career low for a single month. During the 2016 season, Manaea was regularly hitting 93 and 94 mph with his fastball.His injury couldn't come at a worse time as the A's try to catch the Houston Astros in the American League West at the very least secure a wild-card berth. Oakland is 1.5 games back of the Astros and five games up on the Seattle Mariners for the final wild-card spot.Before losing Manaea for at least the next week and change, pitching was the Athletics' biggest question mark. According to FanGraphs, Oakland starters are 17th in FIP (4.27). That number isn't terrible but less than ideal for a team with postseason ambitions.So far Jon Lester Jersey , the patchwork Athletics rotation has defied expectations.Andrew Simon AndrewSimonMLBSince July 30, the fearsome foursome of Edwin Jackson, Trevor Cahill, Mike Fiers and Brett Anderson has made 15 starts for the As.The result? 93 IP, 1.26 ERA.I mean, what?Maintaining that over the stretch run won't be easy, especially if Manaea's shoulder injury keeps him out for an extended period of time. NEW YORK (AP) — The New York Mets acquired outfielder Keon Broxton from the Milwaukee Brewers on Saturday http://www.chicagocubsteamshop.com/authentic-david-ross-jersey , giving them a center field option in addition to Juan Lagares.The Mets sent reliever Bobby Wahl to the Brewers along with a pair of minor leaguers, right-handed reliever Adam Hill and infielder Felix Valerio.Broxton had four home runs, 11 RBIs and a .179 batting average in 51 games for Milwaukee last season. While he stole 23 bases in 2016 and 21 the following year, he swiped just five last season. A right-handed batter, he hit 20 homers in 2017 but struck out 175 times.Mets general manager Brodie Van Wagenen called the 28-year-old Broxton a “dynamic athlete with the ability to impact the game in the outfield, on the bases and with his bat.”Lagares had little depth behind him on the roster, with corner outfielders Michael Conforto and Brandon Nimmo his likely backups in center before the trade. Yoenis Cespedes is recovering from surgery on both heels and New York is not certain when he will return.Wahl http://www.chicagocubsteamshop.com/authentic-david-ross-jersey , a 26-year-old righty, was acquired by the Mets from Oakland in July as part of the deal that sent closer Jeurys Familia to the Athletics. Wahl went 0-1 with a 10.13 ERA in seven games with the Mets and was 4-2 with a 2.20 ERA for New York’s and Oakland’s Triple-A teams last season.Brewers general manager David Stearns says Wahl “has the arsenal to be a very quality major league reliever and has dominated the upper levels of the minor leagues.”Hill, a right-handed reliever, was selected out of South Carolina in the fourth round of last year’s amateur draft. He went 1-1 with a 2.35 ERA in nine games for the Class A Brooklyn Cyclones.Valerio batted .319 with three homers and 22 RBIs in 67 games in the Dominican Summer League.