Spanish cross-country skier who won 3 gold medals at the 2002 Olympics but they were all stripped after he tested positive for darbepoetin.
He was raised in Germany and trained with the German team in preparation for the 1992, 1994 and 1998 Winter Olympics.
He obtained a Spanish citizenship after being kicked off the German team in 1998.
He is the son of Lukas and Hanna Muhlegg.
He competed in the 2002 Olympics where American skater Sarah Hughes took home the gold.