Casper Ruud beats Hugo Dellien on Friday in Sao Paulo to reach his second ATP Tour semi-final.

#NextGenATP Norwegian Casper Ruud scores one of his biggest wins against Joao Sousa at the Rio Open presented by Claro.

Casper Ruud qualifies for the US Open, his third successful Grand Slam qualifying bid of 2018.

Casper Ruud records the biggest match win of his career on Thursday with victory over three-time champion David Ferrer in Bastad.

Casper Ruud saves six of seven break points against him to oust fellow #NextGenATP player Jaume Munar in Bastad on Monday.

On his Roland Garros main draw debut, #NextGenATP Casper Ruud defeats Jordan Thompson of Australia in five sets to reach the second round.

Norway's Casper Ruud is currently in 10th place in the ATP Race To Milan.

Norwegian teen Casper Ruud will vie for his second ATP Challenger Tour title against home hope Pedro Sousa in Braga.

#NextGenATP Norwegian Casper Ruud meets young fans at a kids' clinic at the Ecuador Open.

#NextGenATP contender Casper Ruud will look to gain more points in the Race to Milan at the Ecuador Open in Quito.

#NextGenATP star Casper Ruud meets fans ahead of his first round match against Carlos Berlocq at the Ecuador Open in Quito.

Casper Ruud takes part in an indoor skydiving activity during the ATP Challenger Tour event in Lyon, France.

#NextGenATP player Casper Ruud poses for a photo in front of the Lighthouse at Cape Florida ahead of the Miami Open presented by Itau.

#NextGenATP players Casper Ruud, Michael Mmoh, Hyeon Chung, Mikael Ymer, Andrey Rublev and Karen Khachanov visit the beach ahead of the Miami Open presented by Itau.

#NextGenATP players Casper Ruud, Michael Mmoh, Hyeon Chung, Mikael Ymer, Andrey Rublev and Karen Khachanov pose in front of the Lighthouse at Cape Florida ahead of the Miami Open presented by Itau.

#NextGenATP's Casper Ruud continues his run of good form with a win over Akira Santillan in the Sao Paulo first round on Tuesday.

Casper Ruud falls in his bid to become the second Norwegian finalist in ATP World Tour history, in Rio de Janeiro.

Casper Ruud caps a strong week in Rio de Janeiro, where he advanced to his first ATP World Tour semi-final.

Casper Ruud celebrates reaching his first ATP World Tour semi-final on Friday.

#NextGenATP player Casper Ruud reaches his first ATP World Tour quarter-final in Rio de Janeiro.

Casper Ruud notches his first ATP World Tour match win with a victory over Rogerio Dutra Silva on Monday in Rio.

(L-R) Ramkumar Ramanathan, Saketh Myneni and Casper Ruud take part in the draw ceremony at the Aircel Chennai Open.

Norwegian teenager Casper Ruud takes part in a tennis skills challenge at the Aircel Chennai Open.

Casper Ruud, 17, was the youngest ATP Challenger Tour titlist in 2016.