Tribe manager Manny Acta said on Saturday the team is considering using a six-man rotation over the season's final month.
"There's a chance that we might call up a starter," Acta said. "We're discussing a plan of probably going with a six-man rotation, which will help some of the younger kids and also some of the guys who have been here the whole year, with their innings.
"That's not etched in stone yet, but that's part of the plan if we call up one of the starters."
The current rotation consists of Justin Masterson, Ubaldo Jimenez, Roberto Hernandez, Zach McAllister and Corey Kluber.
The top candidates to be called up from Triple-A Columbus after rosters expand to 40 players would seem to be right-hander Jeanmar Gomez and left-hander David Huff. Both are on Cleveland's 40-man roster and have pitched in the big leagues in the past.
Gomez opened the year in the Indians' rotation, but was sent to Triple-A after going 4-7 with a 5.18 ERA. At Columbus, the righty has gone 6-5 with a 4.41 ERA. Huff, who has pitched for the Indians in each of the past three seasons, has gone 6-6 with a 5.05 ERA this season with the Clippers.