Fergus was on the bench for last week's game with Leinster and was called in as back-up for seven games last season, playing as a substitute in the Heineken Cup match against Sale Sharks at Heywood Road in January.
Glasgow's Graeme Beveridge may not have played a part in Scotland's World Cup matches so far, but he's made a big impression on Marty Hulme, the squad's fitness specialist. "If we could have 22 of him from the mental point of view, it would be fantastic," said Hulme.
* Glasgow's Jon Petrie missed training with Scotland's World Cup squad today due to a stomach virus.