Glendale, AZ (SportsNetwork.com) - Chicago White Sox ace Chris Sale is expected to miss three weeks with a broken foot that could affect his availability for Opening Day.

Sale suffered an avulsion fracture on the lateral side of his right foot in an accident at home on Friday, the White Sox announced Saturday.

The left-hander underwent X-rays Saturday morning at Banner Estrella hospital near the team's spring training facility in Glendale.

His status for Opening Day will be clearer once the swelling in his foot goes down and further tests are performed, the White Sox said.

They begin the season April 6 in Kansas City.

Sale, 25, had a 2.17 ERA in 26 starts last season with a 12-4 record and 208 strikeouts in 174 innings. He ranked fifth in the majors with a 0.97 WHIP and finished third in voting for the AL Cy Young Award.

He went on the disabled list for the first time in his career on April 22 with a flexor muscle strain in his left arm, missing a month.

Sale is 44-29 with a 2.76 ERA in 165 career games for the White Sox, including 85 starts. He has been a starter for the past three seasons after pitching out of the bullpen from 2010-11.