The Turkish football federation has ordered Fenerbahce to play two home games without spectators after its fans invaded the field during a friendly against Ukrainian champion Shakhtar Donetsk, forcing the abandonment of the game.

The federation announced Wednesday that the punishment was in response to last Thursday's crowd trouble by Fenerbahce fans, who also attacked media representatives for what they regard as critical coverage of a match-fixing probe that involves the league champion.

Fenerbahce president Aziz Yildirim is among 30 suspects in the case and the club faces the threat of being stripped of its title and possible relegation.

Turkey pushed back the start of the season for more than a month until Sept. 9 due to the inquiry.