DENVER (AP) _ Top U.S. snowboarder Chris Klug was doing well Saturday after a liver transplant 24 hours earlier.

Klug, 27, of Aspen, got a new liver Friday morning at University Hospital, spokeswoman Marcia Dailey said. He was in fair condition, which she said was to be expected a day after surgery.

``The doctors say he's doing well,'' Dailey said.

Dailey did not know when he would be released, but Klug has said he expected to be in the hospital for up to a week after surgery and then remain in Denver for three weeks while doctors monitor his condition.

``I plan to make a full recovery by summer's end,'' the snowboarder said several weeks before the transplant. ``Just as I came back from my knee surgery this past winter season.''

Klug was declared the national champion in the giant slalom when he finished second to Canadian Jasey Jay Anderson in the U.S. Snowboard Championships in March.

He also won the World Cup giant slalom at Berchtesgaden, Germany, in January and took the bronze in the super-G race at the Goodwill Games in Lake Placid, N.Y., in February.

After a routine physical five years ago, Klug was diagnosed with PSC, a rare condition that attacks bile ducts within the liver. It affects one in 10,000 people in the United States, mostly younger men.

Klug has said very little about his liver condition but had been on a liver-transplant waiting list for more than three years before the surgery. His condition had worsened recently.