Niall Quinn, ex-Chairman of Sunderland Football Club, is a patron of the Sir Bobby Robson Foundation, which is celebrating its 5th anniversary.
He said: "I feel privileged to have met Sir Bobby, let alone to have contributed in a small way to his Foundation and the lesson I have taken from my involvement is that it's not what you have, it's what you leave behind.
"Sir Bobby may no longer be with us, but he left behind an incredible legacy and a remarkable team. Reaching £5m is a brilliant achievement, a testament to the deep generosity and tireless efforts of so many people.
"Bobby's memory brings out the best in people. Long may it continue."
Alan Shearer is a patron of the Sir Bobby Robson Foundation, which is celebrating its 5th anniversary with a new fundraising total of £5.2m.
Shearer said: "The work the Sir Bobby Robson Foundation has funded over the past five years is incredible and really pushing the boundaries of how we detect and treat cancer. I've no doubts the next five years will be just as positive and bring even more advances.**
"My thanks to everyone who has contributed to this fantastic team effort. I'm sure Sir Bobby would be humbled and very proud at his charity's ongoing success."
The cancer charity founded by Sir Bobby Robson exactly five years ago has now raised £5.2m - ten times more than his initial target. The former England and Newcastle United manager, who died in 2009, spent the last eighteen months of his life raising money and hoped the charity would be his legacy.