The Indians' 16-inning win Wednesday night wiped out enough of the bullpen to force the call-ups of left-hander Nick Hagadone and right-hander Corey Kluber from Triple-A Columbus.

Players are required to remain in the minors for 10 days after being optioned, but Hagadone bypassed that regulation because he was replacing an injured player, Shin-Soo Choo, who was placed on the 15-day disabled list, retroactive to Aug. 28.

The Tribe was not planning to put Choo on the DL, but that was the only way Hagadone could be called up now, after being was sent down Aug. 28. Choo (left oblique strain) is eligible to come off the DL on Sept. 12.

"The fastest he was going to be back was a couple of days earlier," Indians manager Manny Acta said. "That wasn't worth taking the risk of being short in the bullpen."

Hagadone, 25, started the season in Double-A Akron and posted a 1.59 ERA in 12 outings. He was promoted to Triple-A on May 19 and went 4-3 with a 3.42 ERA in 33 appearances. In his past 21 games, Hagadone has a 1.97 ERA in 32 innings.

Hagadone was obtained from the Boston Red Sox in the Victor Martinez deal that also brought Justin Masterson and minor-league pitcher Bryan Price to the Indians in 2009.

Kluber, 25, was in the Clippers' rotation and compiled a 7-10 record and 5.65 ERA in 26 games. He was acquired from the San Diego Padres in July 2010 in the deal that sent Jake Westbrook to the St. Louis Cardinals.