European Ryder Cup teammates Martin Kaymer and Graeme McDowell have been confirmed in the field for the BMW PGA Championship at Wentworth in May.
The duo, who have both won the US Open, join the likes of world number one Rory McIlroy and Justin Rose in committing to the European Tour's flagship tournament.
McDowell will return to Wentworth after missing last year's tournament to be with his pregnant wife in Florida.
"It was frustrating to pass up an opportunity to play in our flagship event, but family comes first, and I am now ready to put all my focus on trying to win this prestigious title," he told the European Tour's website.
"Wentworth is very close to central London, so it can only be good for the Championship to hopefully draw the attention of golfers and non-golfers alike to what's happening a few miles away in Surrey."
Last year's tournament was won by McDowell's fellow Northern Irishman McIlroy.