The Gunners star was forced to play a shot from the woods at Wentworth, where he is taking part in the PGA ProAm tournament.
Big names from around the world of sport flooded the event - three of them together.
|Off-track: Theo Walcott was forced to play from the woods after a wayward shot|
|Stars align: Rory McIlroy (right) and England rugby captain Chris Robshaw were playing together|
Rugby captain Chris Robshaw and former England cricket skipper Andrew Strauss were playing with the Northern Irish star - no 2 in the world.
Other famous faces from the world of sport to take part included Fulham's John Arne Riise, Walcott's Arsenal team-mate Aaron Ramsey, and rugby legends Matt Dawson, Will Greenwood and Keith Wood.
|Gunning for it: Walcott's Arsenal team-mate Aaron Ramsey also showed off his skills at Wentworth|
|Trying: Golfer Paul Casey (centre left) with ex-rugby stars Matt Dawson, Keith Wood and Will Greenwood|
Match of the Day: TV pundit and former Liverpool star Alan Hansen plays a shot from the fairway
Premier effort: Walcott and Fulham defender John-Arne Riise share a joke
|Teaming up: McIlroy was playing with Robshaw and former England cricket captain Andrew Strauss|
Taking Le Tiss: Southampton legend Matt Le Tissier admires one of his shots
|Come on Tim: Former star Henman tries his luck on the course|