Rangers take on Zenit St Petersburg in Manchester today as they continue their bid for a four-trophy haul this season.
With the CIS Insurance Cup already under their belts, Rangers also have a Scottish Cup final to look forward to as well as a two-game deficit to make up in the league.
Carlos Cuellar: "It's a question of looking after yourself well.
"You don't have a minute to rest. I think that in eight months I've played close to 70 games. In Spain you normally play 38 or 40 games at most.
"It's tough physically and mentally, but it's what we want as players, to be playing in big games and have that pressure on us.
"I came here because I knew it was a big club, with the chance of winning titles, of playing in the Champions League, always being in Europe, which is what I've always wanted. So I made the best decision."
"We'll go out there to win it. It's our obligation.
"Football, as you know, is full of changes. One day you're here, the next you never know. You never know if you'll be lucky enough to play another final.
"This will be something historic, important and beautiful for this club. We have to win it."