The Oakland Athletics were dealt some brutal news on Tuesday Allen Craig Jersey , as ace starting pitcher Sean Manaea is on the disabled list with rotator cuff teninditis and could be out for the season, per Jane Lee of MLB.com.Sean Manaea has rotator cuff tendinitis. He鈥檚 shut down indefinitely. A鈥檚 hoping he can pitch again this season, but there鈥檚 obviously a chance he won鈥檛 be able to.— Jane Lee (@JaneMLB) August 28, 2018The Athletics also announced that left-handed starter Brett Anderson is on the DL with with forearm strain. The news comes while Oakland is in the midst of an intense race for the AL West with the Houston Astros, and in line to reach the second wild card spot in the American League.Manaea, 26, was in the midst of a career year with the Athletics, posting a 12-9 record with a 3.59 ERA and 108 strikeouts in 160.2 innings pitched. He threw a no-hitter against the Boston Red Sox on Apr. 21 http://www.padresfanproshop.com/authentic-tony-gwynn-jersey , becoming the 12 player in franchise history to accomplish the remarkable feat.advertising Credit: Darren Yamashita-USA TODAY SportsBilly Beane and the rest of the front office may now look to work out a deal for any pitchers placed on waivers. The Athletics have come a long way this late in the season, and it's imperative that they have enough arms for October baseball. There's no replacing Manaea, but there are some guys on the market that could be useful.Perhaps Toronto Blue Jays righty Marco Estrada would interest the Athletics. He has a strong postseason track record and is a free agent at the end of the season. The Jays would probably be happy to get out of his contract, if Oakland is taking him on. Gio Gonzalez of the Washington Nationals cleared waivers and could be available.advertisingThe Athletics should make the playoffs for the first time in four years, but it could be difficult to embark on a long journey, when other AL teams like the Houston Astros and New York Yankees carry deeper rotations.For now, Oakland has to hope that Manaea can recover in time for the postseason, and that Anderson will return to full health. The Philadelphia Phillies continued their busy winter on Thursday by signing Bryce Harper to a 13-year http://www.padresfanproshop.com/authentic-dave-winfield-jersey , $330 million deal, but that megadeal may wind up being the last big splash the team makes this offseason.A source told MLB.com's Todd Zoleckithat it is "unlikely" the Phillies sign starting pitcher Dallas Keuchel or closer Craig Kimbrel after reaching an agreement with Harper. Zolecki notes, though, that things could change if either free agent pursues a short-term deal.While top free agents like Harper and Manny Machado have signed recently, both Keuchel and Kimbrel remain unsigned鈥攂ut not because they are not coveted assets.Keuchel, 31, is coming off a season in which he went 12-11 with a 3.74 ERA in 34 starts, striking out 153 in 204.2 innings. The southpaw's impressive resume features two All-Star selections Rollie Fingers Jersey , the 2015 American League Cy Young award, four Gold Gloves and a World Series ring.The former 20-game winner has a career 4-2 record in the postseason with a 3.31 ERA in 10 appearances (nine starts).With spring training camps in full force, Keuchel recently told Fox 26's Mark Berman that he was anxious to join a team:Mark Berman MarkBermanFox26Dallas Keuchel (kidkeuchy) on his free agent situation: quot;Im calm amp;amp; collected outside the field. So I really dont hit the panic button at all. Im worried about getting myself ready..At the same time Id like to get out there amp;amp; meet new teammates or meet old teammates.quot; JdOo00Wa7qKimbrel, meanwhile, has been the top reliever on the market all winter.The right-hander went 5-1 with 42 saves and a 2.74 ERA in 63 appearances, striking out 96 batters in 62.1 innings. His dominance out of the bullpen helped Boston win a franchise-record 108 games last season as well as the World Series.The 30-year-old has 333 career saves and has allowed just 285 hits in 532.2 career innings.CBS Sports'Jim Bowdenreported last week that Kimbrel was willing to sit out the 2019 season if offers didn't improve. Kimbrel's agent,David Meter, denied that report http://www.padresfanproshop.com/authentic-randy-jones-jersey , calling it "wildly inaccurate."Philadelphia ownerJohn Middleton toldNightengaleback in November that the team was willing to spend "stupid money." After signing Harper ($330 million) and Andrew McCutchen (three years, $50 million) while acquiring shortstop Jean Segura and catcher J.T. Realmuto already, the Phillies may be nearing their limit.