Gregor returned to Scotland after an extended spell in Italy and has impressed with his strength and mobility. He said: "I'm really excited and honoured about it," he said. "Basically this is why I came back to Scotland and I was well aware that I'd have to prove myself all over again.
"Obviously I know Hugh and he knows what I can do but I had to prove myself to the other club coaches, Shade and Sean, to earn my place in the Glasgow side. I also had to prove myself to the players because apart from those I knew before heading to Italy, like Jon Petrie and Andy Henderson, we're all new to each other. I’ve just kept my head down and worked hard and hopefully that'll stand me in good stead."