Red Sox pitcher Justin Masterson gave up six earned runs in Tuesday night's 9-2 loss against the Athletics.
Masterson only went 2 1/3 innings and gave up his six runs on six hits. Two of those hits came on home runs. Masterson struck out one batter and walked another.
Red Sox manager John Farrell said Masterson may be dealing with an injury.
"Clearly he's not right," Farrell said, via The Boston Globe.
Masterson could wind up being moved to the disabled list soon.
Masterson has now given up 10 earned runs and only thrown a total of four strikeouts in his past two games.