Henrik Stenson and Miguel Angel Jiménez will tee it up at Crans-sur-Sierre at this year's Omega European Masters, from August 26-29.
Stenson, winner of The Open in 2016 after a thrilling final-day battle with Phil Mickelson, returns to the Haut-Plateau after a nine-year absence.
The five-time Ryder Cup player has 21 professional victories to his name and was Race to Dubai champion in 2013 and 2016.
At 57 years of age, Jiménez is still a force to be reckoned with. Last year, he broke Sam Torrance's long-standing European Tour appearance record and is the oldest player to have won a tournament on the European Tour.
Winner of the 2010 Omega European Masters, 2021 will be Jiménez's 31st appearance in the tournament.