Kosovo Olympic authorities have asked the International Olympic Committee (IOC) to open disciplinary proceedings against Novak Djokovic, accusing him of stirring up political tensions by saying "Kosovo is the heart of Serbia" at the French Open. Djokovic wrote the message on a camera lens following his first-round win, the same day 30 NATO peacekeeping troops were hurt in clashes with Serbian protesters in the Kosovo town of Zvecan, where Djokovic's father grew up. Serbian authorities said 52 protesters were wounded in clashes after ethnic Albanian mayors took office in northern Kosovo's Serb-majority area following elections that were boycotted by the Serbs. To read the original story by Reuters, click here.