Former England hooker Jack Singleton has joined Glasgow Warriors 13 months after experiencing a cardiac event in training.

The 30-year-old has agreed a short-term deal to provide cover during the Nations Championship and Six Nations.

Singleton spent six years with Gloucester, where he scored 20 tries in 75 appearances, after playing for Worcester and Saracens.

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.

“I’m in a much safer spot than I was 16 months ago when I was playing.”

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. “It’s a massive privilege for me to be a part of this group.

“I’ve seen the success in the European runs they went on last year. I remember watching that Toulouse game and the atmosphere looked unbelievable.

“Honestly, if they asked me to play this weekend, I’d get out there. I probably wouldn’t give a great account of myself, to be fair.”

Singleton last represented England in 2022 and is Scottish-qualified through his grandparents.

However, he is not looking beyond getting back on the pitch with the Warriors.

“I’m more just worrying about training right now and then hopefully playing, and then we’ll see what happens after,” he said.

Glasgow hookers Gregor Hiddleston and Seb Stephen are likely to be called up for Scotland’s internationals in November, February and March.