Jonathan Daniel/Getty ImagesThe Washington Nationals placed starting pitcher Stephen Strasburg on the 10-day disabled list Thursday Tucker Barnhart Jersey , retroactive to July 22, with an unspecified injury.An MRI on Strasburg's shoulder revealed no damage, and the star pitcher will visit a neurologist in Los Angeles to evaluate a potential nerve issue, per Dan Kolko of MASN.According to MLB.com'sJamal Collier, the Nats are expected to call up Tommy Milone to start against the Miami Marlins on Thursday.Washington's decision comes on the heels of a disappointing outing for Strasburg in his most recent start.After allowing six earned runs on eight hits and two walks in 4.2 innings against the Atlanta Braves last week, Strasburg got into an argument with fellow starter Max Scherzer in the dugout.The Nationals placed Strasburg on the DL in June with right shoulder inflammation. Injuries have been a recurring problem for the three-time All-Star http://www.redsfanproshop.com/authentic-matt-harvey-jersey , with ESPN.com noting he made six trips to the DL over the past four years prior to his latest stint.Injury issues aside, Strasburg has been fairly solid in 2018. While not pitching at the standards he set over the last few seasons, he's6-7 with a 3.90 ERA and a 3.50 FIP in 14 starts.Strasburgfinished with a career-best 2.52 ERA (minimum six starts) last season.While Milone is expected to replace Strasburg for the time being, there will be additional pressure on Scherzer, Gio Gonzalez, Tanner Roark and Jeremy Hellickson to step up while Strasburg is out as well.The Nats are seven games behind the Philadelphia Phillies for the NL East lead Scott Schebler Jersey , and they trail the Atlanta Braves by 5.5 games for the final wild-card spot in the NL.If Strasburg's DL stay is an extended one, an already difficult trek to the postseason will become even tougher for Washington. Kyle Wright is the proposed headliner with his impressive mix of current polish and future projection. However, he could be swapped for any of Mike Soroka, Touki Toussaint, Ian Anderson, Luiz Gohara or even Sean Newcomb if the D-backs prefer more of a proven quantity.Meanwhile Scooter Gennett Jersey , outfielder Drew Waters had a big first full pro season after going No. 41 overall in the 2017 draft. He hit .293/.343/.476 with 39 doubles, nine triples, nine home runs and 23 steals while reaching High-A before his 20th birthday.The trade doesn't gut the Braves system, but it's still a huge return for Arizona, as both prospects figure to pop up on Top 100 lists next spring.For the Braves, Greinke would join emerging star Mike Foltynewicz and Kevin Gausman (free agent following the 2020 campaign) George Foster Jersey , giving the team three established starters to front the staff ahead of whichever young arms emerge.It's an aggressive move and one Atlanta might have to consider if the Philadelphia Phillies have as busy of an offseason as many expect.While it's unclear whether these three teams are included on Greinke's no-trade list, it stands to reason that he would be willing to waive his veto power for a chance to join a contender if the D-backs decide to tear down the roster. We shall see. All stats courtesy of Baseball Reference and FanGraphsunless otherwise noted.