Getty New York Mets pitcher Sean Manaea The highly anticipated return of a starting pitcher from injury would normally be cause for celebration. Two key starters returning might have most fan bases dancing in the streets.   But for followers of the New York Mets , the recent news surrounding rehabbing pitchers Sean Manaea and Frankie Montas has been anything but optimistic.   Both pitchers opened the season on the injured list . Montas – who signed a two-year, $36 million deal with the Mets