Daisuke Matsuzaka goes four-plus in second rehab start

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More progress for Boston’s Daisuke Matsuzaka.

According to Dan Hickling of the Boston Globe, the Japanese right-hander allowed just one earned run over 4 2/3 innings Saturday for the Double-A Portland Sea Dogs. It was his second minor league rehab start, and he reported no issues whatsoever with his surgically-repaired right elbow.

Matsuzaka is throwing all of his pitches and being clocked regularly in the lower-90s with his fastball. If all continues to go well, he could join the Red Sox starting rotation at some point in early June.

Dice-K has a 4.25 ERA, 1.40 WHIP and 8.2 K/9 in 622 2/3 career major league innings (spanning five years).