Australian teenager Nick Kyrgios has celebrated his 19th birthday with a tournament win on the ATP’s secondary Challenger tour, his second title in as many weeks.

Kyrgios defeated American Jack Sock 2-6 7-6 6-4 on Sunday to lift the trophy at the Challenger event in Savannah, Georgia.

It was his second straight tournament victory on American green clay following his triumph at the Sarasota Challenger in Florida the previous week, and takes his winning streak to 10 matches.

“Awesome couple of weeks, nice rewards for the whole team and our hard work. Couldnt have asked for much more. Nice Bday pressie too!!,” he tweeted after the match.

He also said that he had picked up a slight abductor strain in the win over Sock, but hopes to be fit for the next Challenger tournament in Florida next week.