Wimbledon is moving into the final rounds, with the women's singles semifinals and men's singles quarter-finals being playing tonight. Here are three things to watch for in tonight's games.
1. Top dog
Defending champion Novak Djokovic will take on US Open winner Marin Cilic for the 13th time. Cilic haslost to Djokovic every time so far, but could this be unlucky No 13 for the top-seeded Serb? For Cilic, beating Djokovic in the quarter-finals would be an extra-sweet victory - the Croatian player was knocked out of Wimbledon by Djokovic at the same point in the competition last year. And, finally, will the match be finished in one day? Djokovic has had to play several matches over two days lately, the most recent being his nail-biting defeat of14th-seeded South African Kevin Anderson, when he recovered after losing the first two sets.
2. Low rider
Former Wimbledon champion Andy Murray will face the lowest ranked player left in the men's tournament, Canadian Vasek Pospisil. The two have played each other four times already, with Murray winning each match. Pospisil is known for having a strong serve, but if Murray can use his all-round talents to return them he should be looking at an easy win, commentators say. Pospisil has had 163 minutes more game time than Murray this tournament at 11 hours 32 minutes. Whether this means Pospisil is more fatigued or more battle-hardened is yet to be seen.
On to the women's semifinal, Serena Williams will take on old rival Maria Sharapova tonight for a place in the final. The two tennis greats have history, with Williams famously losing to the Russian teenager in the 2004 Wimbledon final. However, Williams has beaten Sharapova in four other semifinal matches. If Williams secures a fifth win against Sharapova tonight, she will be one step closer to an all-round Grand Slam win this year - winning all four grand slam tournaments - which would be the first time in women's tennis since Steffi Graf in 1988.