RONNIE O’SULLIVAN put his shock defeat in the European Masters final behind him with a comfortable 4-0 win over James Cahill at the Welsh Open – before casting doubt on ambitions for another World Championship title.

Chinese youngster Fan Zhengyi claimed a shock 10-9 victory over O’Sullivan to win his first ranking title in Milton Keynes on Sunday.

The Rocket was swiftly back in action at Celtic Manor on Tuesday, coasting past Cahill with three half-century breaks to move through the first qualifying round into the last 64, where he will face Belgian Lukas Kleckers.

Following the routine win, six-time world champion O’Sullivan maintained he continues to view snooker as “more of a hobby” as he takes stock of his career achievements.

“No matter what you do it’s just a business and I just look at what’s best for me,” O’Sullivan told BBC Wales.

“If somebody rang me up next week and said: ‘look we’ve got a great job for you, it clashes with the World Championship, but it’s a better offer,’ I’d go.

“At the moment I play when I want, don’t play when I don’t want to play, and it’s great.

“It’s more of a hobby, but a serious hobby. I just make a decision on each tournament and each proposal.”

Last week during his run to the final in Milton Keynes, O’Sullivan spoke of suffering “snooker depression” for a couple of hours following matches.

The 46-year-old maintained he would “100 per cent” swerve another trip to the Crucible if he felt another opportunity was right.

“I’m just all about business now and that’s how it’s been the last seven or eight years,” O’Sullivan said.

“No matter what it is, I look at it as a proposal. Is it something I want to do? And make a decision on it.

“My time is very, very valuable and I want to feel valued for my time.

“So as long as I’m feeling valued in what I’m doing and I don’t feel like I’m wasting my time, then I’d be anywhere, I don’t really care.”

Elsewhere during Tuesday’s early matches at Celtic Manor, home favourite Mark Williams was edged out 4-3 by Norwegian Kurt Maflin while Australian Neil Robertson made two century breaks as he coasted past Hammad Miah 4-1.

There were also first-round victories for China’s Ding Junhui, Joe Perry, Scott Donaldson and Ali Carter, who chalked up a 4-1 win over Hong Kong’s Ng On Yee, the first woman to compete in the event.

In Tuesday’s evening session, world number three Judd Trump scored a break of 120 in the final frame of his convincing 4-1 win over Craig Steadman to reach the last 32.

Northern Ireland’s Mark Allen ended the hopes of Ukrainian teenager Iulian Boiko with a comfortable 4-0 victory, and Fergal O’Brien edged out Thailand’s Thepchaiya Un-Nooh 4-3 on the final black.

Five-time winner John Higgins hit a couple of centuries as he progressed 4-0 against Iran veteran Soheil Vahedi, with Matthew Selt and Jack Lisowski also coming through their late matches.