This is the phrase used by the Portuguese star at a meeting after Friday night’s playoff between Israel and Portugal at the 2014 World Cup.
After the match, an Israeli player removing his shirt offered it to Ronaldo, who refused because he could not agree to wear a jersey on which there was the flag of the State of Israel.
In the locker room when reporters asked him why he had refused to exchange his jersey, he said “I do not exchange my shirt with murderers”  (Google English translation).

A Real Euro-star: Cristiano Ronaldo, who became the world’s most expensive footballer when he joined Real Madrid for £80 million from Manchester United, made his full international debut for Portugal in 2003.
This is not the first time the Portuguese star Ronaldo has shown his solidarity with Palestinians, last year he auctioned off his soccer boot in gold, to help Palestinian victims of Israeli bombing.
Original source:

http://streettelevirtuelle.wordpress.com/2013/04/17/sport-je-nechange-pas-mon-maillot-avec-des-assassins-cristiano-ronaldo-apres-le-match-portugal-israel/