Marc Warren insists he is not "scarred" by a number of high-profile near-misses since his last European Tour victory six years ago.

Warren, joint 12th in the US PGA Championship earlier this month, won his second tour title in the Johnnie Walker Championship in September 2007 and two months later partnered Colin Montgomerie to Scotland's first-ever World Cup triumph in China.

However, the 32-year-old has not tasted success since and returns to Gleneagles this afternoon after wasting several opportunities in a manner that led one television commentator to wonder whether he had been scarred by such failures.

Warren bogeyed four of the last five holes at the Spanish Open in April to finish one shot outside the play-off and the following month lost out in a three-man play-off for the BMW PGA Championship at Wentworth on the first extra hole.

He also squandered a three-shot lead with four to play in last year's Scottish Open.

"I think I know who it was and what he said," Warren said about the comments on TV. "I think scarred in trying to win tournaments....playing Challenge Tour events and trying to get my card back, trying to win tournaments is nowhere near the pressure of that.

"I don't think I ever will be scarred, I'm not that type of person. I just get on with it really.

"I wouldn't not take a shot on because I failed in the past, put it that way. I won't back down under pressure or not win a tournament because I haven't won in the past, because I know I have what it takes.

"I've put myself in position in bigger tournaments than I've ever done in the past and that's why I made all the changes.

"And if I keep doing that the wins, I would say, are inevitable the way I'm playing. Keep putting yourself in position, it's going to happen."