Thanasi Kokkinakis will make his fourth main draw appearance at the Australian Open.

Thanasi Kokkinakis lifts his first ATP Challenger Tour trophy since 2015, in Aptos.

Thanasi Kokkinakis teams with Matt Reid for the Aptos doubles title after lifting his first singles trophy in three years.

Wild cards Nick Kyrgios and Thanasi Kokkinakis fall in the opening round to No. 3 seeds John-Patrick Smith and Nicholas Monroe in Atlanta.

Aussie Thanasi Kokkinakis will start his North American hard-court swing this week at the BB&T Atlanta Open.

Thanasi Kokkinakis, seeking his third Wimbledon main draw, advances to the second round of qualifying after beating Marcelo Arevalo on Monday.

Thanasi Kokkinakis rips into a backhand during his second-round match against Roger Federer at the Miami Open presented to Itau.

Thanasi Kokkinakis celebrates his first match win over a World No. 1, rallying past Roger Federer in Miami.

Thanasi Kokkinakis claims the biggest win of his young career, stunning Roger Federer in Miami.

Aussie Thanasi Kokkinakis is feeling healthy again at the Miami Open presented by Itau.

Several #NextGenATP players accompanied Thanasi Kokkinakis to take part in an ATP World Tour photo and video shoot in Manhattan on Friday.

2017 champion Sam Querrey and runner-up Thanasi Kokkinakis pose with their trophies on Saturday.

Thanasi Kokkinakis records the best result of his career in Los Cabos.

Thanasi Kokkinakis continues his dream week in Los Cabos with a semi-final win over Tomas Berdych.

Thanasi Kokkinakis narrowly gets past Peter Polansky to advance to his first ATP World Tour quarter-final in Los Cabos.

Thanasi Kokkinakis claims his first hard-court match win of the season over Frances Tiafoe in Los Cabos.

Frances Tiafoe, Taylor Fritz, Thanasi Kokkinakis and Ernesto Escobedo enjoy a UTV adventure in Los Cabos.

Thanasi Kokkinakis is about to set off for a UTV ride through the desert and the beach in Los Cabos on Sunday.

#NextGenATP quartet Frances Tiafoe, Thanasi Kokkinakis, Taylor Fritz and Ernesto Escobedo rode UTVs through the desert and the beach in Los Cabos on Sunday.

Jordan Thompson and Thanasi Kokkinakis shake up the Wimbledon doubles draw with their win on Wednesday.

Jordan Thompson and Thanasi Kokkinakis oust ninth seeds Jean-Julien Rojer and Horia Tecau 7-6(4), 7-6(4), 7-6(4) in the Wimbledon first round.

Daniil Medvedev (L) defeats Thanasi Kokkinakis on Thursday to reach the quarter-finals at The Queen's Club.

Thanasi Kokkinakis acknowledges the crowd after upsetting Milos Raonic in the first round at The Queen's Club.

#NextGenATP Aussie Thanasi Kokkinakis celebrates his first Top 10 win on Tuesday against Milos Raonic in London.

Thanasi Kokkinakis returns to competitive action in the doubles at the ATP Challenger Tour event in Bordeaux, France.