Will Middlebrooks left Tuesday night's game against the Royals in the second inning with left hamstring tightness. The Red Sox third baseman was replaced by Nick Punto.
"It's nothing serious," Middlebrooks told reporters after the Red Sox' 6-4 loss to the Royals. "It's not a big deal, it was just a precautionary thing coming out of the game, so hopefully I'll be back in there [Wednesday]. It was just a type of cramping, tightness in the hamstring, so we really didn't want to mess with it. Wanted to be safe."
Middlebrooks, who missed Saturday's game with "cramping" in his hamstring, didn't appear to be running at 100 percent while rounding third from second base on Marlon Byrd's single to right field. The rookie had reached second with one out in the second inning after doubling down the right-field line.
After his second-inning hit, Middlebrooks' batting average stands at .409. The double was his seventh extra-base hit in five major league games.
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