2014 US Open champion Martin Kaymer is the latest major winner to confirm that he will compete in next month's Irish Open at the K Club.
Kaymer, 31, has not won since his US Open triumph at Pinehurst two years ago which followed his Players Championship victory a month earlier.
The German's best Irish Open finish is a share of 10th at Adare Manor in 2008.
Tournament host Rory McIlroy will also be joined in the field from 19-22 May by recent Masters winner Danny Willett.
Soren Kjeldsen will attempt to successfully defend the Irish Open title after winning at Royal County Down last year while other Ryder Cup hopefuls in the field include Spain's Rafa Cabrera Bello, English trio Matt Fitzpatrick, Andy Sullivan, Chris Wood plus Austrian Bernd Wiesberger.
Cabrera Bello, Kjeldsen, Fitzpatrick and Sullivan all currently occupy automatic qualifying places in the European points list for the Ryder Cup at Hazeltine in late September.
Kaymer played played at the K Club in the 2007 European Open.
"Although it maybe wasn't my best week on the course, I can remember being really impressed by it," added the former world number one, who clinched his first major win at the US PGA Championship in 2010.
"The Irish people love their golf and really get behind the players, so it should make for a great atmosphere, especially with such a strong field there."
McIlroy will be joined at the event by other Irish major winners Darren Clarke, Padraig Harrington and Graeme McDowell while other big names in the field include Shane Lowry and Lee Westwood.