Johnson (2-0) gave up three runs on eight hits and a walk over 4.1 innings while striking out two but was able to escape with a no-decision in Friday's 5-3 win over the Tigers.
The left-hander was on the hook for his first loss in the majors this season before Jackie Bradley launched a game-winning homer in the bottom of the eighth inning. With Eduardo Rodriguez (knee) likely out of action until after the All-Star break, Johnson should finally get an extended look with the Red Sox. He'll take a 3.44 ERA and 1.31 WHIP into his next start Wednesday on the road against the Phillies.