Novak Djokovic will compete at the Giorgio Armani Tennis Classic, his first match since the French Open.
He is joined by Jannik Sinner, with both players seeking to regain form ahead of Wimbledon.
What happened at the French Open?
Novak Djokovic and Jannik Sinner had early exits from the French Open at the end of May.
Djokovic did not sign up for any grass-court warm-up events, a familiar schedule for him.
Why it matters for Novak Djokovic
Djokovic's return to competitive tennis is crucial ahead of Wimbledon, where he will seek to improve his ranking.
He has kept the same schedule for several years, opting not to play official tournaments before the grass-court Grand Slam.
What comes next for Novak Djokovic?
The Giorgio Armani Tennis Classic will be a key test for Djokovic, who will face strong competition from other top-10 ATP stars.
He will seek to regain his form and build momentum ahead of Wimbledon, where he will aim to win his 25th Grand Slam title.
Djokovic has not played competitive tennis since his early exit from the French Open, which ended on May 31.
He will be joined by Sinner, who competed at the Halle Open the past two years, but lost in the first round 12 months ago.
The Giorgio Armani Tennis Classic will take place at Hurlingham, with Djokovic and Sinner among the top players competing.
The event will be a key warm-up for Wimbledon, which starts on July 3.
Djokovic's ranking will be closely watched, as he seeks to maintain his position as one of the top players in the world.
He has won 24 Grand Slam titles, and will seek to add to his collection at Wimbledon.
The Giorgio Armani Tennis Classic will be a crucial test for Djokovic, who will face strong competition from other top players.
He will seek to regain his form and build momentum ahead of Wimbledon, where he will aim to win his 25th Grand Slam title.