Miroslav Zajonc, who has overcome physical and political problems, was named to the U.S. Olympic Luge Team, the U.S. Luge Association announced yesterday in Lake Placid, N.Y.

Hours before the International Olympic Committee's roster deadline, IOC Sports Director Walter Traeger arrived in Calgary, Alberta, site of the Winter Games, and issued formal approval of Zajonc's selection. Zajonc, who defected from Czechoslovakia in 1981, Tuesday received clearance from the Czechoslovakian Olympic Committee.

Zajonc, who lives in Annapolis, suffered a right heel injury Jan. 7 in training for the Olympic trials, an injury originally believed to eliminate him from competing in Calgary. Dr. John Lombardo, head physician for the U.S. Olympic team, issued approval for Zajonc to slide with a protective cast.

Tim Nardiello, Zajonc's doubles partner, already has qualified to race in the singles division. . . .

A member of the U.S. bobsled team says he will refuse to ride in the same sled with football star Willie Gault during the Winter Olympics. "My driver won't ride with him and I myself won't ride with him," team member Jim Herberich told Boston television station WCVB-TV.

Gault, a Chicago Bears wide receiver, was named to the team Jan. 29, bumping Don Lavigne of Albany, N.Y., who had taken a year off from school at Harvard to train. He had been vying for the final spot on the 12-member squad.

"{It} has put the team morale at an all-time low," Herberich said.