AC Milan defender Oguchi Onyewu has signed a one-year extension on his current contract in Italy, during which he will play for free.
The 28-year-old American already had two years remaining on his existing deal but has added an extra season now he has returned to full fitness.
Onyewu has endured a frustrating campaign with injury, having ruptured a tendon in his left knee during a World Cup qualifier against Costa Rica.
He has told the Rossoneri that if he is still at the club in two years' time, he will play out the last year of his contract without getting paid.
A club statement said: "Onyewu, who has been out for virtually the whole season due to injury, but who at this time is getting ready to face the World Cup adventure in South Africa with his national team, has become a star today with a significant gesture from a personal and professional standpoint.
"Onyewu has requested and obtained a contract extension from June 30, 2012 until June 30, 2013.
"With respect to that year, as was his wish, which has been appreciated by the club, Onyewu has asked not to receive any type of wages."
Onyewu joined Milan from Standard Liege last summer and had a previous loan spell at Newcastle in England.