Thailand's Atthaya Thitikul is the bookmakers favourite for this year's edition, due to start tomorrow.

She headed the world ranking for the first time in her career last year but is already a seasoned veteran at the age only 20 because she won her first professional tournament at only 14 years of age in 2017.

She has yet to win a major but was fourth at the event last year and is one of the early starters.

Her tee time is 7.55am when she will be accompanied by Sweden’s Anna Nordqvist, a champion in this tournament back in 2009 and Ayake Furue of Japan, who won the Scottish Open last year for her first title in Europe.

Olympic champion Nelly Korda of the United States is still expected to be among the favourites even though she returns to action after five weeks out with back trouble.

"When I got back from New Jersey, it didn't feel right," Korda said. 

"I talked with my doctor and he recommended I take a couple weeks off to rest it before something else flares up from it,” 

Korda’s only major came at the Women’s PGA in 2021, the same year she took Olympic gold but she was forced to take time out last year with a blood clot.

This year’s absence has made her determined to do well.

"I love competing," added Korda. 

"I have so much fun doing this and travelling. It just makes me appreciate it more, and a little bit more hungry."

Korda will however have to wait until the afternoon to make her appearance,

She is scheduled on tee at 2.01pm with New Zealand’s Lydia Ko, twice a major winner, but not since 2016 when she also lost in a Women's PGA Championship play-off to Canada’s Brooke Henderson.

The trio tomorrow is completed by South Korea's Jin Young-Ko still only 27, but with two majors to her name.

Defending champion South Korea’s Chun In-Gee won a year ago at the Congressional Country Club in Bethesda Maryland.

She led the field on all four days and eventually claimed victory by one stroke with a five under par total of 283. 

"Just really excited to be back here as defending champion so I am trying to repeat this week," Chun said as she completed her final practice round.

“I think the key is to handle the pressure and enjoy it."

She heads out at 8.17am with 2017 Champion Danielle Kang and Hannah Green, a champion in 2019 by one stroke at Hazeltine.

Competition is scheduled to finish on Sunday.

The overall purse is $9million (£7.06million /€8.21 million)with the Champion set to claim $1.3 million(£1.02 million/€910,000)