The Latics head to Wembley on April 13 to face Millwall but of far more significance, with Roberto Martinez's side currently in the bottom three, is Saturday's visit of Norwich followed by a trip to QPR.
"We have Wembley to look forward to but for me the most important game is always the next one and that is Norwich City," the Paraguay international told the Wigan Evening Post.
"We will worry about the FA Cup when it comes around next month.
"For now we must concentrate on the league because there are some important games coming up.
"We have shown in the last few games that we can win games in this league and we must keep that up if we are to move away from the bottom of the table."
Alcaraz has only just returned to the side after more than six months out with a groin problem and he is looking to make up for lost time.
"My season only really started two weeks ago," he said.
"Everything before that I have forgotten about because it was not so good.
"Fortunately there is still time for me to make a difference - and I hope that is the case."
- Sports & Recreation