Cubs closer Pedro Strop is done for the regular season, according to MLB.com.MRI on #Cubs Strop showed moderate left hamstring strain. He will not pitch again in regular season. Postseason TBD Carrie Muskat (@CarrieMuskat) September 14, 2018Strop underwent an MRI https://www.redsoxedge.com/boston-red-sox/pedro-martinez-jersey Friday and it revealeda moderate left hamstring strain. It is unclear whether he will be able to pitch in the postseason https://www.redsoxedge.com/boston-red-sox/nomar-garciaparra-jersey .Strop suffered the injury Thursday trying to beat out a double play in extra innings of the Cubs’ 4-3 win over the Nationals. He has posted a 2.26 ERA with 13 saves and nine holds this season.The Cubs will also be without the team’s other closer Brandon Morrow for at least a little while longer Ted Williams Jersey though he said he will be back and hopes to return next week.Chicago leads the Brewers by 1 1/2 game for the lead in the National League Central with 16 games to play.