"I have always said that when Sir Alex Ferguson rests players at Manchester United he is changing his team, yet when I do it I am rotating," said the Spaniard.
"I explained earlier in the season that if a team wants to win trophies then it is important for the manager to use all of his squad. I wanted us to be alive in all the competitions.
"We can only win the Champions League now, but we have a good chance because the players have all had a rest . I have used the same group of players for a while now and our form has been good.
"There is some tiredness, but physically we can manage.
"When we played Arsenal in the Champions League we got the result because the players were all able to work at their peak until the last minute.
"That is because the players are not too tired at the end of a tough season."