Johnson (hamstring) will be the starter against the Tigers on Friday, Jason Mastrodonato of the Boston Herald reports.
Johnson is set to make his third start of the 2017 season Friday as he comes back from his hamstring injury. The 26-year-old was dominant in his spot start on May 27 against the Mariners, pitching a complete game shutout on five hits while fanning eight. Johnson is coming off a 33-pitch bullpen Tuesday and is ready to get another chance at the major-league level.