Celtic travel to the iconic Nou Camp for tonight's Champions League Group G clash against Spanish giants Barcelona. Kick-off time is at 7.45pm and will be screened live on UK television on Sky Sports 2. Here's the team news ahead of the game... Four key Celtic players will be assessed with late fitness tests ahead of the game. Scott Brown (hip), Kris Commons (hamstring), Georgios Samaras (elbow) and James Forrest (groin) are all doubts but will be hoping they shake off their respective injuries to be included for the Bhoys. All four players missed Celtic's 5-0 win over St. Mirren in Paisley on Saturday in the Clydesdale Bank Premier League. Defenders Kelvin Wilson and Adam Matthews have knee and calf complaints, though manager Neil Lennon is keeping his fingers crossed that both will be fit. Definitely missing tonight as they did not travel were Lassad (groin) and Dylan McGeouch (knock). Line-ups from; Celtic (from): Forster, Matthews, Lustig, Wilson, Ambrose, Mulgrew, Izaguirre, Brown, Ledley, Kayal, Forrest, Commons, Samaras, Wanyama, McCourt, Miku, Watt, Zaluska, Chalmers.