Russell Knox insists his do-it-yourself approach can help him achieve his dream of becoming a golfing superstar.

The Inverness exile, who is now up to No 23 in the world rankings following a share of second in last week’s Irish Open, makes his debut in the BMW PGA Championship at Wentworth.

Knox has worked away without a coach since his long-term mentor, Mike Flemming passed away two years ago.

And the Florida-based Scot said: “Professional golf can be very intimidating and when I first got on the PGA Tour in 2012, I’d walk up to the range and see these superstars and think, ‘maybe I should do that, maybe I need this coach or that coach to do this?’ But professional golf is all about doing what you need to do and I don't really care what other people do anymore. It's an extremely selfish game and that's how people get good at it because they figure out what works best for them and stick with it.

“Mike taught me everything I needed to know. He made me the player I am today and he's watching me play somewhere, wherever he is. I'm never going have a relationship with another coach like I did with Mike, so I'm not going to try. I've always dreamed of being a star and hopefully one day I will be.”

Knox, who made his big breakthrough in last November’s WGC HSBC Champions, continues to display a level-headed, easy-going manner despite his growing stature.

But the Jacksonville resident admitted he’s had to work hard on keeping his fiery will to win in check.

Knox added: “I was a total head case on the course at one point. I used to get so mad. I didn't throw clubs but I got internal rage. If I made a mistake or had a couple of bad holes my body temperature would rise and I would just want to snap every club in my bag. But I've worked very hard at that. Since I've been a pro and I've been out here on tour, I’ve become aware that the difference between the top superstars and the guys who aren't quite there is a lot to do with attitude.”

Meanwhile, Motherwell ace Paul O’Hara landed the Tartan Tour’s first order of merit title of the season when he beat Graham Fox in a play-off to the P&H Championship at The Renaissance.