Speaking to Prime Casino, Gallas said: "It's not just him on Tuesday - it has to be other players. Declan Rice produced a world-class performance against Real Madrid, and if he can't repeat it, another player has to take the responsibility and step up with a match-winning performance.
"Odegaard, can he do this? At the moment, he looks like he can't go to that level at the moment. The level Declan Rice reached, and Saka - he had a great performance, in the first game, the second game against Madrid. I want to see Odegaard come to the party. He's been quiet this season, but we know that he has the potential to be a match-winner, a world-class player.
"On Tuesday, it will be very interesting to see what is going to happen between Saka and Nuno Mendes, because he can play top-level stuff too. It's going to be a good challenge for Saka."