Still only 26, Alan has decided to take up a business opportunity that has arisen.
Alan has been released from his contract from 12 April, but played his last game for Glasgow as a full-time professional last Friday. Alan won't be travelling to Dublin tomorrow for Glasgow’s Celtic League match against Leinster Lions at Donnybrook on Friday.
"I've had a fantastic time over the years with Glasgow," Alan said today. "But it's time for me to pursue business interests. I wish the guys all the best."
"We're sorry to lose Alan, of course," said Hugh Campbell, Glasgow's head coach. "He’s been one of the longest serving professional players. He has been an exemplary servant for Glasgow rugby over the years, and we wish him well."
David Jordan, Glasgow's chief executive, agreed, adding that retirement as a full-time professional need not necessarily spell the end of Alan's appearances for the team. "It would not be a surprise if Alan were to be called in occasionally to cover a gap in the team," the chief executive suggested. "He's the ideal player."
It's sad to see a player retire for whatever reason, especially someone who has contributed so much over such a long period, but it's something Alan has obviously thought long and hard about. Alan has made his decision when he has been in a rich vein of form and still looks like he has lots to offer. Supporters will no doubt wish Alan the best of luck for the future and thank him for all his efforts in a Glasgow jersey.