Arturo Vidal admitted Barcelona's minds are on Tuesday's game against Manchester United after drawing 0-0 against Huesca.
Barça beat United 1-0 on Wednesday and then faced Huesca on Saturday ahead of Tuesday's second leg against the Premier League side at Camp Nou.
Valverde made 10 changes to his side against Huesca, with goalkeeper Marc-Andre ter Stegen the only player to keep his place from Old Trafford.
"It was a really different team today," Vidal told beIN. "Those that don't play as often played and they played well. We played with a new system, with three at the back, the pitch was a bit dry and the ball didn't run, but we didn't lose and that was the most important thing."
Vidal admitted that everyone -- including Lionel Messi (rested), Gerard Pique and Luis Suarez (both suspended) -- is already focused on the United game.
"We were all thinking about Manchester [United on Tuesday] -- those that were here and those that stayed at home," eh added.
"[The second leg] is going to be difficult, but we got a good result over there. La Liga's the objective and we're really close to [winning it] but the Champions League is everyone's dream."