Jason Day on Tuesday committed to play at the 2018 Travelers Championship.
Day, the seventh-ranked player in the world, already has two wins on tour this year.
The 30-year-old Australian captured the trophy at the 2015 PGA Championship for his first major championship and is the former world number 1.
“Jason is one of the world’s best players, so having him return to TPC River Highlands reflects our mission of bringing the world’s greatest golfers to Connecticut every year,” said Travelers Championship Tournament Director Nathan Grube.
This will be Day's fourth appearance at the Travelers.
The addition of Day means six of the top 15 golfers in the world have committed to play at the Travelers Championship this year, including defending champion Jordan Spieth, Justin Thomas, Rory McIlroy, Paul Casey and Patrick Reed.
Tournament week is June 18-24.