Andrey Rublev says he needs to be 'more professional and positive to reach next level' after beating Novak Djokovic
Andrey Rublev has outlined the changes he needs to make to his game to reach the “next level”, including improving mentally and being “more professional and positive”. World No. 8 Rublev has not yet made his breakthrough at a Grand Slam, only reaching the quarter-finals four times out of 18 main-draw appearances.


