Awaiting the final decision on whether he will be allowed to enter the United States, and thus to perform at the upcoming “US Open” (end of August), Novak Djokovic spends his time in Montenegro, where he trains like hell, but also where which has extreme adventures.

The Serb is currently in Kotor, where he took the opportunity to swim in the river Ljuta, known for its extremely cold water, whose temperature drops to five degrees Celsius. This is not the first time that he enters this river, and it is on the recommendation of his adviser, Wim Hoffa, who is considered an extreme athlete. At this low temperature, Djokovic does breathing exercises, which help him to have better control and concentration.