Tennis: Djokovic left coach Marian Vajda, trained Serbian player for 15 years
{"_id":"621f739e92368b54211d956c","slug":"tennis-serbian-novak-djokovic-announces-split-from-coach-marian-vajda","type":"story","status":"publish" ,"title_hn":"Tennis: Djokovic quits coach Marian Vajda to train Serbian player for…