CINCINNATI -- A day after the most unusual five-inning start of his career, Reds pitcher Aaron Harang's arm felt no ill effects.

Harang pitched 4 2/3 innings vs. the Astros on Monday before a two-hour, three-minute rain delay. He was able to resume pitching after the stoppage and faced two batters to notch the final out and qualify for the 8-5 Cincinnati victory.

"I think there have been times I've been more sore after a regular start than that one," said Harang, who threw 93 pitches in the game. During the delay, he also kept throwing inside the indoor batting cage to stay loose. It wasn't at full speed, however.

Harang realized his start was a unique one. Because of injury concerns, managers usually will shut a pitcher down if a long delay interrupts his game. Harang had to lobby manager Dusty Baker and pitching coach Dick Pole to let him get the third out of the fifth inning.

"Typically, it doesn't happen, but typically, guys aren't usually an out away from a no-decision or victory," Harang said. "Usually, it's two or three innings and a rain delay or you're through the fifth already. Any other starter in my position who's that close to getting a win, you're going to try and do what you can do to get it."

In 10 starts this season, Harang is 5-4 with a 3.36 ERA.

In other rotation happenings, Edinson Volquez is scheduled to have his second bullpen session on Wednesday since going on the disabled list on Friday (retroactive to May 17) with back spasms. Volquez said he threw "nice and easy" in his previous session. He also played catch on the field on Tuesday.

Volquez is eligible to be activated on Monday and is a good possibility to start that night vs. the Cardinals at Busch Stadium.

"I don't have any pain right now. I think I'm ready to go," Volquez said.