Instant Replay: Dimitrov's racket smash, cliff jump; more highlights

Welcome to Instant Replay, a recap of the best highlights, GIFs and photos as we move into the business end of this week's tournaments. At the Dubai Duty Free

Welcome to Instant Replay, a recap of the best highlights, GIFs and photos as we move into the business end of this week's tournaments. 

At the Dubai Duty Free Tennis Championships, 18-year-old BornaCoric scored a big upset to make his first semifinal of the year, knocking out No. 3 Andy Murray 6-1, 6-3 in the quarterfinals. Coric, ranked no. 84, now has wins over Rafael Nadal and Murray in the last four months. Check out some highlight's from their match:

[youtube=https://www.youtube.com/watch?v=T44LppcUAc0]

After Richard Gasquet retired in the second set of their match, Roger Federer advanced to the semifinals in Dubai and appears to be in good form as he tries to mount a successful defense of his title. How about this stab:

[youtube=https://www.youtube.com/watch?v=6O-AXWkdZeU]

Friday's semifinal play in Dubai is set, with Coric taking on Federer in the first match and Novak Djokovic matched up against Tomas Berdych in the second.

Amin Mohammad Jamali/Getty Images

Amin Mohammad Jamali/Getty Images

Ryan Harrison scored the biggest win of his career in Acapulco, beating defending champion and No. 3 seed Grigor Dimitrov 7-5, 4-6, 6-0 in the second round of the Mexican Open. It's the first Top 10 win of Harrison's career. He came into the tournament ranked No. 169.

Here's Harrison after the win:

[youtube=https://www.youtube.com/watch?v=NUjp69oloXc]

Dimitrov's 2015 struggles continue. He served for the first set only to be broken. And he wasn't happy about it:

Let's see that again in GIF form:

​[tweet=https://twitter.com/ProdigyRep/status/570722874656468992]

Venus Williams advanced to her second semifinal of the season with a 6-4, 1-6, 6-3 win over Agnieszka Radwanska at the Qatar Total Open. Victoria Azarenka also made her first semifinal in over a year after beating Caroline Wozniacki 6-3, 6-1.

Venus' run to the Doha semifinals is even more impressive given she had to play nearly three hours in her second round match to beat Barbora Zahlavova Strycova 7-5, 3-6, 7-6 (5) in a match that ended around 1:30 a.m. The post-match handshake included a harsh glare from Zahlavova Strycova, who was unhappy with the umpiring in the match:

[youtube=http://youtu.be/iDgm2GhS_wM]

Speaking of umpiring in Doha, Azarenka's straight-forward win over Wozniacki got an injection of energy at the end of the first set. Serving to stay in the set at 30-all, Wozniacki hit a second serve let that appeared to land out but was called in, which should have given her a second serve. Azarenka called for a Hawk-Eye challenge but the system was down which meant the call stood. Azarenka was understandably livid, but then Wozniacki got into it as well, demanding that she should be given a first serve because of the delay. The supervisor was called out and everyone was arguing with someone. 

[youtube=​http://youtu.be/RVvG2A_d5dQ]

Here's the close up of the ball:

And the awkward kiss-handshake:

[tweet=https://twitter.com/Renestance/status/570992074633433088]

Alize Cornet lost 6-4, 6-0 to Wozniacki in the third round of Doha, but not before hitting this shot:

[youtube=https://www.youtube.com/watch?v=pi5eU3UdWiM]

The top two seeds in Acapulco showed off their speed:

[youtube=https://www.youtube.com/watch?v=6Zgb-sZX4zE]

[youtube=https://www.youtube.com/watch?v=xhA4ZNHZahc]

Murray showed some fine defense in his opening round win over Gilles Muller in Dubai. 

[youtube=https://www.youtube.com/watch?v=rVPipbPMyM4]

You make the call: Fancy camera work? Or did Dimitrov really take the plunge?

[youtube=https://www.youtube.com/watch?v=ZUqnilBw_7U]

Protestors were present outside the grounds of the Mexican Open on Tuesday, protesting the disappearance of 43 students who were reportedly killed by Mexican drug gangs.

Francisco Estrada/Anadolu Agency/Getty Images