Nick Kyrgios Stuns Novak Djokovic in Mexico Open Quarters

Australia's Nick Kyrgios used a barrage of 25 aces to defeat top-seeded Novak Djokovic 7-6 (9), 7-5 early Friday morning and reach the semifinals of the Mexican Open.

Kyrgios blasted 16 aces in the first set to beat Djokovic in his first match against the second-best player in the world and will play against American Sam Querrey in one of the semifinals.

Spaniard Rafael Nadal will face off against Croatia's Marin Cilic in the other.

Kyrgios, the world's 17th-ranked player, also defeated Roger Federer and Rafael Nadal the first time he played against them. The 21-year-old Australian beat Nadal in Wimbledon (2014) and Federer in Madrid (2015).

Djokovic was playing in his first tournament since a shocking loss in the second round of the Australian Open.

Now Kyrgios could face Nadal in the final if he manages to get past an inspired Querrey, who's having a great week in Mexico.