The prop has been sidelined since suffering ripped calf muscles during Samoa's World Cup campaign but Sean Lineen, the Glasgow coach, told The Herald: "With the Heineken Cup looming, it will be a huge bonus to have Justin back in action. We badly want to establish and keep momentum in the build up to the tournament and the presence of a player of his ability and experience will always be of benefit.
"We are also looking forward to the return of our other international prop, Kevin Tkachuk, who is still recovering from the broken leg he sustained during Canada's World Cup preparations."