Thomas Has Stress Fracture

The Chicago White Sox learned they will be without major league RBI leader Frank Thomas for at least three weeks.

Tests revealed that first baseman Thomas, one of baseball’s most durable players, has a stress fracture of the long bone of his left foot from the ankle to the toe.

The White Sox called up Chris Snopek from the minors to take Thomas’ place on the roster.

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San Francisco Manager Dusty Baker, who has drawn praise for keeping the Giants in the NL West race despite their atrocious pitching, signed a two-year contract extension through the 1998 season.

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Pat Listach was activated from the 15-day disabled list by Milwaukee and the Brewers sent outfielder Kevin Koslofski to triple-A New Orleans. Teammate Greg Vaughn, who spent the All-Star game getting sick in the clubhouse, ate some soup Thursday but was too weak to start against the Toronto Blue Jays. . . . Cleveland first baseman Julio Franco was put on the 15-day disabled list because of a pulled right hamstring. Left-handed pitcher Alan Embree was recalled from triple-A Buffalo to take Franco’s place.

Seattle put outfielder Manny Martinez on waivers and optioned right-hander Mac Suzuki to triple-A Tacoma. Martinez, 25, was then claimed off waivers by Philadelphia. To fill the roster spots, the Mariners recalled left-hander Tim Davis from an injury rehabilitation assignment at Class-A Everett and purchased the contract of first baseman Greg Pirkl from Tacoma. The Mariners also signed 33-year-old Jose Guzman, a right-hander, to a minor-league contract and assigned him to Tacoma. Guzman was released by the Chicago Cubs.

Montreal claimed 6-foot-8 right-handed reliever Jeff Juden off waivers from the San Francisco Giants and sent outfielder Rob Lukachyk to triple-A Ottawa. Juden was 4-0 with a 4.10 earned-run average in 36 appearances with the Giants. . . . Kansas City called up left-handed pitcher Jose Rosado to replace Mark Gubicza in the starting rotation.

Pittsburgh activated pitcher Steve Parris off the 60-day disabled list. Parris takes the roster spot that opened when the Pirates released Zane Smith on Saturday. . . . Efforts to build a baseball stadium in Sacramento reached first base when the Legislature sent Gov. Pete Wilson a bill that would create a Sacramento Ballpark Authority. The measure was approved by the Senate on a 26-3 vote. The Assembly passed it Monday.