Fit-again flanker Ray Ofisa and prop Robbie Morris, who is back from suspension, both return to the squad having been selected on the replacements bench.
Meanwhile, Glasgow Warriors welcome back Scotland centre Max Evans and Scotland Under-20 lock Richie Gray as they look to return to winning ways against Connacht.
Evans, who injured his knee against the Ospreys in May, excelled in his return to competitive rugby for associated Scottish Hydro Premier One club, Glasgow Hawks, last weekend, while Gray gets his first start of the season after recovering from an elbow injury sustained during pre-season.
Evans and Gray are the latest players to return to the Warriors team which endured an outbreak of flu.
With last weekend's return of Scotland international players Chris Cusiter and Graeme Morrison, Glasgow boss Sean Lineen is happy to include a total of 12 internationals in his starting line-up.
GLASGOW WARRIORS: Bernardo Stortoni; Colin Shaw, Max Evans, Graeme Morrison, Thom Evans; Dan Parks, Chris Cusiter; Jon Welsh, Dougie Hall, Moray Low, Richie Gray, Al Kellock (capt), Kelly Brown, John Barclay, Johnnie Beattie.
Replacements: Pat MacArthur, Kevin Tkachuk, Dan Turner, Richie Vernon, Mark McMillan, Colin Gregor, Hefin O'Hare.
CONNACHT: Gavin Duffy; Troy Nathan, Niva Ta'auso, Keith Matthews, Fionn Carr; Ian Keatley, Frank Murphy; Brett Wilkinson, Sean Cronin, Jamie Hagan, Michael Swift, Bernie Upton, Michael McCarthy, Johnny O'Connor, John Muldoon (capt).
Replacements: Adrian Flavin, Robbie Morris, Andrew Browne, Ray Ofisa, Conor O'Loughlin, Miah Nikora, Tiernan O'Halloran.
Referee: Tim Hayes (Wales)
Assistant Referees: David Changleng, Bob Nevins (both Scotland)
Match Odds (Paddy Power): Glasgow Warriors to win: 1/10; Draw: 25/1; Connacht to win: 5/1
Say What: Michael Bradley (Connacht) - "We're looking forward to playing Glasgow in Firhill and backing up the win we had against Montpellier. The way we played that match and the quality of the scores we got, the lads are really buzzing and looking forward to Friday.
"We understand it's going to be difficult against Glasgow. They have had two poor results in the Heineken Cup, they'll be looking to put that right and they're going reasonably well in the Magners League, so that might be their focus for the remainder of the season.