Zanardi

The two-time CART champion was injured Saturday and came out of an induced coma Wednesday.

"He could be released any time from Sunday to the following week," Dr. Walter Schaffartzik said Friday. "We have to do this on the basis of his recovery."

Zanardi emerged from the coma slowly Wednesday night after doctors reduced drugs that induced the state, which lessened the chance of organ failure. He regained full consciousness Thursday when the sedatives wore off, doctors said.

The 34-year-old Italian, one of CART's most popular drivers, underwent another operation Friday to check his progress.

CART official Mike Zizzo said the driver, upon regaining his ability to speak Thursday, first spoke to his wife, Daniela.

"He was very thankful to be alive and to be with his wife and son," Zizzo said.

Zanardi, seeking his first win of the season, was hit at 200 mph in CART's first race in Europe. He also sustained a small pelvis fracture and concussion but escaped internal or head injuries.

Schaffartzik said Zanardi should be able to walk again with artificial legs.

"We are all very encouraged by the progress that Alex is making," said teammate Tony Kanaan. "Our thoughts and prayers have been with him all week long, and somebody up there is definitely listening."