Get ready for the regular season and avoid injuries.

Those are the two main goals for every major-league team in spring training, so there had to be some concern in the White Sox' camp on Monday when veteran relief pitcher Jesse Crain was sidelined with a strained right adductor.

Crain, who had to pull himself off Team Canada's World Baseball Classic roster due to the injury, doesn't expect to be down for long.

"The right thing to do is if I'm not right and can't pitch, then I can't push myself to try to get there for the WBC," Crain told reporters in Glendale, Ariz. "The more important thing is the season and the White Sox. I'm going to get myself healthy."

Crain said he's hoping to throw by the end of the week, but there is reason for the Sox to be worried.

A key setup man in the bullpen, the 31-year-old Crain strained his right oblique last spring and was sidelined for more than a week.

During the regular season, Crain twice landed on the disabled list, once with a strained left oblique and once with a shoulder strain.

When he was healthy, Crain went 2-3 with a 2.44 ERA and struck out 60 in 48 innings.

The White Sox are obviously hoping the latest ailment doesn't set off another chain reaction of injuries because Crain is a valuable piece of the bullpen.

On the other hand, the Sox are loaded with quality relievers.

In what is likely to be his last season on the South Side, Matt Thornton made his spring debut Tuesday and pitched 1 scoreless inning against Team USA. The 36-year-old lefty was bothered by triceps soreness early in spring training.