Robertson will serve as Boston's opening pitcher in the second game of Thursday's doubleheader against the Yankees, Gabrielle Starr of the Boston Herald reports.
Robertson has allowed 14 runs -- 11 earned -- in 16.1 major-league innings of relief this season between the Dodgers and Red Sox. The 25-year-old right-hander probably won't go more than a frame or two in the nightcap Thursday at Fenway Park.