Making his fourth Minor League rehab start, Matsuzaka went 6 2/3 innings, giving up seven hits and five runs (four earned). He walked none and struck out three, giving up two homers.
Pitching for Triple-A Pawtucket during a game played in Durham, Matsuzaka threw 95 pitches, 64 of which were for strikes.
Matsuzaka will pitch next for Pawtucket on Tuesday. After that, the clock will run out on his 30-day rehab assignment.
At that point, the Red Sox might have to get creative and find a way for the righty to get some more tune-ups in before returning to the Majors.