Former world 400 metre hurdles champion Dai Greene has revealed he is leaving his coach Malcolm Arnold after five years based at the University of Bath.
Under the stewardship of Arnold, Greene won world championship gold, as well as Commonwealth and European titles.
The 28-year-old's last major medal was the gold he won in the word's final in Daegu in 2011, though, and a succession of injuries since has left the Welsh athlete struggling for form and fitness.
He recently lost his Commonwealth crown in Glasgow, and was quoted on WalesOnline as admitting it's time for a "change of scene."
"I could do with a change of scene so at the moment I'm in search of a new coach," he said.
"I've been in Bath for around five years now and I feel that the last couple of years haven't gone my way.
"It can be a little bit depressing going to training when you're the only guy injured and training on his own.
"I'm getting great support from the people at British Athletics and I'm sure I'll find something in the next couple of weeks."
Greene also paid tribute to Arnold, a man who has coached a number of great hurdlers in a career spanning more than 40 years.
"Malcolm and I have had a good run at things," he said.
"I've learned so much under his tutelage and if it wasn't for him I wouldn't be sitting here, I wouldn't be being interviewed and I wouldn't have the medals I have won.
"So I'll be forever grateful to him for what we managed to achieve."
Along with Greene, Arnold also coached Colin Jackson and John Akki-Bua to global success as well as, more recently, Scotland's Eilidh Child, who recently won European gold and Commonwealth silver.
Arnold will still work within the sport, though, as he is a national event coach for hurdles in the UK. As for Greene, he will need to find a coach quickly if he wants to return to the form of three to four years ago.