ISTANBUL – Turkey's struggling national football team was Monday engulfed in fresh turmoil after top goalkeeper VolkanDemirel walked out of a crucial Euro 2016 qualifier due to abuse by Turkish fans. The bearded Demirel, a controversial figure who divides opinion, was warming up on the pitch Sunday before the qualifier against Kazakhstan when he heard insults directed at him from the stands. He initially told the fans to be quiet but the abuse continued and Demirel waved then sarcastically, symbolically removed his gloves and marched off the pitch apparently on the verge of tears. The game was played at the Turk Telekom Arena, the home of Istanbul giants Galatasaray. Demirel plays for their Istanbul arch-rivals Fenerbahce and has long been a hate figure for Galatasaray fans.