Prom Meesawat will take another huge step on the comeback trail when he makes his debut on OneAsia at this week's US$1 million Indonesia Open presented by Enjoy Jakarta.

The talented Thai player is battling back to top form after his fast-moving career hit a speed bump due to a debilitating shoulder injury.

The 25-year-old Prom joins an impressive field in the Indonesia Open presented by Enjoy Jakarta to be staged at the award-winning Damai Indah Golf - Pantai Indah Kapuk Course from July 1 to 4.

Stetson-wearing showman Shingo Katayama, winner of a staggering 26 titles and US$17 million in prize money in Japan, headlines a stellar cast including former Asian number ones Liang Wenchong of China and Thailand's Thaworn Wiratchant.

Liang will be bidding for his third title on OneAsia after winning last season's Midea China Classic and the Luxehills Chengdu Open in April.

Veteran Thaworn, the winner of 11 titles on the Asian circuit, was runner-up in the recent Queen's Cup in Thailand.

Prom, nicknamed the "Big Dolphin" because of his burly physique and former seaside home, was one of the brightest prospects in Asian golf before injury struck two years ago.

"My whole game is a lot better compared with the last 18 months. I am working with my dad (former professional Suthep) now and he has helped so much," said Prom.

Prom burst onto the professional scene in 2004 after a great amateur career that saw him win the Putra Cup four times in both the individual and team categories.

Two years later he won the SK Telecom Open in Korea and was tipped for stardom before his progress stalled because of the shoulder damage.

"My problem was with my driver. It's been going everywhere. The tendons in my left shoulder and left pec have given me a lot of pain. It was caused by playing so much golf and probably not swinging the correct way," he said.

Prom's weight has often been an issue and he has been working hard to slim down from 115 kgs.

"I have lost five to 10 kg recently - I am aiming for 100 kgs," added Prom.

The Indonesia Open presented by Enjoy Jakarta will be the fifth leg of burgeoning OneAsia, which will stage 11 tournaments with a total of more than US$12 million in prize money this season.

The event will be showcased on OneAsia's television platform with live coverage for four hours a day across all four tournament days, and broadcast to over 260 million homes in more than 40 countries. Full coverage of this week's event will be available domestically on ESPN Star Sports, as well as internationally on ESPN3.com, Network Ten, America One and Bloomberg Television among others.