Tributes have been paid to former Worcester Warriors coach John Brain who died suddenly at the weekend, aged 51.
Brain joined Warriors as head coach in 2001 and during his six-year stay at Sixways masterminded the club's first promotion to the top flight.
As director of rugby in 2002, he led Warriors to the Premiership with a perfect 26 wins out of 26 National One matches - a record that has yet to be surpassed.
He left Sixways in April 2007 to become forwards coach at Bristol before heading for a second spell at Gloucester Rugby as Rugby Operations Manager.
The Worcester Warriors website carried a statement which read: "Everyone connected with Warriors is deeply saddened by today's news and our thoughts are with his wife and daughters at this difficult time."
Former Worcester Warriors captain Pat Sanderson, who played under Brain, told BBC Hereford & Worcester: "Much will be said about his contribution to his sport, but it was John Brain as a man, as an individual which impressed me most.
"We worked with John for a good many years, he was a wonderful person who touched many peoples lives who played with him and for him.
"At the moment it's a very difficult thing to come to terms with.
"He was an incredibly funny person and it took a while to realise that, and you never quite knew when it was coming out, but when it did he was very funny.
"I can't reiterate how much he will be missed by the people who knew, and I can't imagine the pain his family must be in."
Brain made nearly 300 appearances for Gloucester as a player and also worked as assistant coach at Kingsholm under Philippe Saint-Andre before taking charge at Worcester.
Brain was appointed rugby operations director last year, a role that included scouting, players contracts and playing department budgets.
A club statement said: "Everyone at Gloucester Rugby is deeply saddened by the news that rugby operations manager John Brain passed away on Sunday morning.
"John was a true Gloucester rugby stalwart, representing his home town club with distinction for the vast majority of his rugby playing career.
"His passing has come as desperately sad news for everyone at the club and our thoughts are with his wife and daughters at this difficult time."
Premiership Rugby, the umbrella organisation of the Aviva Premiership, expressed their sympathy following Brain's death.
Rugby director Phil Winstanley said: "John was a real rugby man who played a significant role in the development of Worcester Warriors and Bristol Rugby.
"However, John was a passionate Gloucester man at heart and had three spells at the club as a player, coach, director of rugby and administrator.
"It was when he returned to Gloucester in 2010 it was clear to everyone in the game that he was where he wanted to be.
"There was no doubt that Gloucester Rugby was the club he loved. He'll be sorely missed by the whole rugby community but particularly by everyone at Kingsholm.
"The thoughts of all within Premiership Rugby go to John's wife and family."