Astros' Collin McHugh pitches into fourth inning in second rehab start

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Astros starter Collin McHugh was efficient enough in his second Class AA rehab start Wednesday night to complete 3 2/3 innings and build his pitch count up to 53.

McHugh, who was scheduled for roughly three innings and about 45-50 pitches, was perfect through three innings before allowing two runs in the fourth. He struck out five and didn't issue a walk.

Yet to pitch for the Astros this season because of an elbow impingement, McHugh will probably require multiple additional minor league rehab starts before he's ready to rejoin the major league team. He allowed four runs on seven hits in one-plus innings in his first rehab start Friday.