Serena Williams head coach, Patrick Mouratoglou, is rooting for Novak Djokovic to complete a calendar Grand Slam this year, which is something more achievable than a Roger Federer Grand Slam moment or Rafael Nadal resurgence.
In an interview with Tennis Best, the outspoken tennis coach didn't have any hesitation in siding Djokovic as to his chance of becoming the only male tennis player to win all Grand Slams in a season. He really believes that the Serb can pull it off as long as he continues to play at this level.
"The Grand Slam is an exploit amazingly difficult to realize but if Djokovic keeps playing this way... the only one who can stop him, is himself. If he has a bad day and his opponent plays the match of his life,' Mouratoglou said via Tennis World USA.