Red Sox manager John Farrell said pitcher Justin Masterson will have a second rehab start in Portland this Friday, according to WEEI.
In his first rehab start, Masterson, who is rehabbing shoulder tendinitis, threw 50 pitches in 1 2/3 innings, which didn't make for a great debut. This season, Masterson, in seven starts, is 2-2 with a 6.37 ERA and 24:19 K:BB ratio in 35 1/3 innings.