Tennis: Djokovic through to French Open semis after straight sets win over Zverev

World number one Novak Djokovic stretched his Grand Slam winning streak to 26 matches as he beat number five seed Alexander Zverev 7-5, 6-2, 6-2 in the French Open quarter-finals. The top-ranked Serb converted his second match point when Zverev put a backhand long.