Tennis star Djokovic stands by Kosovo comments after criticism. The Serbian icon wrote “Kosovo is the heart of Serbia” on a camera lens at the French Open on Monday, the day 30 NATO peacekeeping troops were hurt in clashes. Serbian Novak Djokovic said he stood by his statement on Kosovo but wished to put the controversy behind him after his second-round victory at the French Open on Wednesday. The world No. 3 wrote: “Kosovo is the heart of Serbia” on a camera lens following his first-round win on Monday, the day 30 NATO peacekeeping troops were hurt in clashes with Serb protesters in the Kosovo town of Zvecan — where Djokovic’s father grew up. It caused a furor, with Kosovo’s Olympic authorities asking the International Olympic Committee to open disciplinary proceedings against Djokovic and French Sports Minister Amelie Oudea-Castera saying the 22-time Grand Slam winner’s comments were “not appropriate.”