Jason Day and Lydia Ko to partner at the Grant Thornton Invitational

Day and Ko are the fifth team to be announced.

Jason Day and Lydia Ko are the latest team committed to play in the Grant Thornton Invitational, which will debut in December as part of the Challenge Season.

The event, which replaces the QBE Shootout, will feature a 32-player field of 16 PGA Tour and 16 LPGA players competing for a $4 million purse. The three-day tournament, which will consist of three distinct playing formats in scramble, foursome and modified fourball, is set for Dec. 8-10 at Tiburon Golf Club in Naples and will be televised by NBC and Golf Channel.

The 35-year-old Day, a native of Australia, is a 13-time winner on the PGA Tour. During the 2022-23 season, Day carded eight top-10 finishes in 24 events, including a one-stroke victory in May’s AT&T Byron Nelson. He and partner Billy Horschel also finished tied for 10th place in last year’s QBE Shootout.

Ko, a 26-year-old New Zealand native, has 19 career LPGA Tour victories. including a two-shot win last November at the CME Group Tour Championship at Tiburon. She also won the CME in 2014. Ko recorded 14 top-10 finishes in 2022.

Day and Ko are the fifth team pairing announced for the Grant Thornton Invitational, joining Nelly Korda and Tony Finau, Rickie Fowler and Lexi Thompson, Sahith Theegala and Rose Zhang and Canadian golfers Corey Conners and Brooke Henderson.