Marko Strahija

In October 2007 Strahija again tested positive for hCG, which caused him to miss the European Short Course Championships held in December that year. This time, subsequent medical tests found testicular cancer, and Strahija immediately underwent surgery. In February 2008, the International Swimming Federation exonerated Strahija, lifting his provisional suspension. He made a successful recovery, taking part in the 2008 Summer Olympics.

In Atlanta, United States, he finished in 11th position (B-Final) in the Men's 200 m backstroke, and was eliminated in the heats of the Men's 4 × 200 m freestyle relay, alongside Gordan Kožulj, Miroslav Vučetić, and Marijan Kanjer. Strahija won the silver medal, behind Aaron Peirsol of the United States, in the 200 m backstroke at the 2002 FINA Short Course World Championships.

Strahija's urine sample, taken in an out-of-competition control in July 2002, tested positive for human chorionic gonadotropin (hCG). Since hCG is a known tumor marker, Strahija underwent medical tests that found nothing suspicious. He maintained his innocence and disputed scientific validity of testing for hCG. Nevertheless, in 2003 he received a two-year suspension.

Marko Strahija (born May 28, 1975 in Zagreb) is a backstroke swimmer from Croatia, who competed at three Summer Olympics between 1996 and 2008.