David Greene's trials win in Birmingham was also his season's best
Olympic gold medalist Denise Lewis is tipping Welsh hurdler David Greene for glory at this month's European Championships in Barcelona.
Swansea Harrier Greene, 24, has already booked his place there after defending his 400m hurdles title at last week's trials, 0.19secs quicker than before.
"He's the fastest man in Europe," said heptathlete Lewis who won gold at the Sydney Olympics in 2000.
"He is able to win a medal - he has the potential to do it."
Greene is one of Britain's major medal hopes at the Europeans in Barcelona.
He has been injury-free for the first time in two years, but before that saw his 2007 campaign wiped out by tendon problems in his feet after winning gold at the European Under-23 Championships.
Last year, Greene, who hails from Llanelli, was tipped by former 110m hurdles world champion and world-record holder Colin Jackson to taste victory on the European stage.
Greene is now being trained by Jackson's former coach Malcolm Arnold.
And he successfully defended his 400m hurdles title at the European Trials and UK Championships in Birmingham to confirm his spot on the team when running in 48.77secs.
Lewis believes success will come Greene's way, if not in Barcelona, at some point.
"What I love about Dai is he's very composed and a very good technician," she said.
"Dai has just been crafting the last couple of years working on his skills, working on his technique, he's training at a very good facility in Bath and he's with Malcolm Arnold.
"He's on his way to what could be a European Championships victory - a gold medal.
"If it doesn't happen in Barcelona, it will happen at some point. He has to experience that winning way."
Joining Greene in Barcelona when the Great Britain squad is announced on Tuesday will be Christian Malcolm, who pulled off a shock 200m win at the UK trials.
He also secured a fourth-place finish in the 100m that could earn a relay spot.
Malcolm's 200m time of 20.77secs was two-hundredths of a second outside the A qualifying time, but he achieved the A mark at La Chaux de Fonds in Switzerland on Sunday.
Malcolm ran his fastest 200m since the 2008 Beijing Olympics with a 20.50secs.
London-based Welsh printer Elaine O'Neill could make the 4x100m relay team with third at the UK Trials in the 100m and 200m silver.
Discus thrower Brett Morse, of Penarth, also hopes to make Barcelona after winning his event.
The A standard also eluded another Welshman, Rhys Williams, as he finished second in 49.76, while Richard Yates (50.07) came in third.