Rafael Nadal was knocked out in the French Open opening round for the first time in his career after a straight sets defeat to Alexander Zverev. Does it mean the end of his era as the King of Clay? Will we see his return at Grand Slams? Also in this week’s Sideline Story, we touch on Novak Djokovic's French Open title hopes as well as Chinese star Zheng Qinwen's prospects at Grand Slams.