Atletico face Galatasaray in the Europa League on Thursday.
Lopez told Marca: “It is a great challenge, we are very excited about this competition, and we will give everything to go as far as possible in it.”
“It is very important. We are playing better and growing more confident with every game.
“We must continue in this vein.
“Galatassaray are top of their league, and have a great history, so it will not be easy.”