Singleton joins Glasgow a year after cardiac event

He admits the thought of never playing again "definitely crossed my mind" as he had stents and balloons fitted to open up his arteries. "It's a hereditary condition that we didn't know about," he explained. "Since the operations and procedures that I've had and the drugs that I'm now taking, everything's more under control. Singleton, who has four England caps, has been doing "full running sessions" since May but is unsure of when he will be fit to resume playing. "I'm looking forward to just getting stuck into training," he said.