Rangers fell behind to a first half Motherwell strike but rallied with four second half goals to triumph 4-1 at Ibrox. Boss Walter Smith has full confidence in his small squad after this impressive comeback.
He said: "The boys who play for us know that's the case. There is no getting away from that.
"We have a situation where we have a small group of players and we know we have to handle it. It's more a mental thing than a physical thing, it's not tiredness in any way.
"It's difficult for the Scottish lads especially, they are playing the world champions on a Tuesday night and having to come back and play in a league game.
"It's not easy to lift yourself mentally for that. It's difficult to adjust to an ordinary league game after playing the world champions.
"It'll be different for the next two games that we have, we will have no problems in that respect."
Smith said: "It's a great start from us and we are delighted. We managed to have a little bit of a gap between ourselves and Motherwell at the end.
"A lot of other games have been fairly close, it's been by the odd goal and we have had to work extremely hard to win the games.
"Credit to our group, they have played well. There was a little bit of slackness in our play earlier in the season but overall we are delighted."
Smith refused to look ahead to the clash with Celtic, adding: "We have the Valencia game before then and we will go in with a bit of confidence after our performances in the league and the Champions League."