The Chicago White Sox are expected to abandon their six-man rotation, and Phil Humber may be the odd man out.

The White Sox have been using six starting pitchers - one more than usual - for a couple of weeks. The starters have been Mark Buehrle, John Danks, Gavin Floyd, Jake Peavy, Edwin Jackson and Humber, who is 3-3 with a 2.85 ERA in nine starts.

Humber began the season in the rotation but may move to the bullpen now that Peavy has made three starts and appears recovered from his lingering arm issues.

"We have to know if (Humber) can pitch out of the bullpen, how long it will take to get loose," White Sox manager Ozzie Guillen told the Chicago Sun-Times. "There are so many things to go over with (pitching coach Don Cooper) to see about who is the best guy to go there. If Humber has to go there, that’s the way it is."

Danks is 0-7 in 10 starts but has a 4.34 ERA and has received two runs or less of support in six outings.