- Juan Martin del Potro wins on his return from wrist injury
- Argentine had not last played a match since March 2015
- Del Potro beat Denis Kudla 6-1 6-4 at Delray Beach Open
- He plays John-Patrick Smith in Thursday's second round
(CNN)After nearly a year of frustration Argentine Juan Martin del Potro has something to finally smile about.
The 2009 U.S. Open champion made a winning return to the tennis court at the Delray Beach Open Tuesday after 11 months out with a wrist injury.
The Argentine, who has plummeted to 1,041 in the world rankings following his spell on the sidelines, eased past world No. 59 Denis Kudla in his first match since March 2015.
The former world No. 4 saw off American Kudla 6-1 6-4 in 61 minutes, losing just 10 points on his serve, to book his place in Thursday's second round where he will come up against Australia's John-Patrick Smith.
It's clearly early days but the Argentine thinks he might be still capable of troubling tennis' established stars.
"I think winning a match after 11 months is the gift of the tournament for me," Del Potro said on the ATP World Tour's official website. "For me it's like winning a very important match in my career."
"I'm so excited to keep working because I'm feeling if I do well and if I stay healthy my tennis will be behind me and maybe I can be dangerous one day again," the 27-year-old added.