The Latics will earn an FA Cup semi-final berth with victory over David Moyes' side at Goodison Park on Saturday, but the Spaniard insists "90 minutes is an eternity"
The two sides will go head-to-head in the FA Cup quarter-finals at Goodison Park hoping to secure a last-four berth and a day out at the national stadium.
However, the Spaniard believes they still have "too far" to go before they can start thinking of reaching the semi-finals.
"I don't really think that far, because I'm very pleased to get to where we have got so far, but we have done nothing yet," he told reporters.
"It would be an incredible achievement [to reach the semi-finals], and that is why we are going to fight tooth and nail to get there.
"But until you get there, it is pointless to make an overall assessment. I think we are still too far [away].
"Ninety minutes is an eternity in football, never mind looking to the final.
"We are happy to look back at this year's competition and how well we have done. Now, going to Goodison Park in the quarter-finals is a real challenge, and that is the way we are looking at it.
"Then, if you can overcome that, it will be the moment to look at what is ahead and what that would mean.
"When you are facing a game that could make history, though, for any club that is always extra-special."
The Balaguer-born boss went on to claim that his side's cup run will not detract from their battle against relegation from the Premier League.
"I think with the stage that we are at in the season now, it is quite straightforward - we are going to try to win every game that is left," he added.
"It is quite simple - we just take it game by game, and we understand the importance of being in the quarter-finals of the FA Cup."