Speaking to the Wigan Observer, Martinez said: “It may have seemed like a very quick signing, but I can guarantee that is not the case. We had been chasing him for the best part of five months.
“I met Antolin back in February in Brussels, and I am convinced he is absolutely the right character for our football club.
“He is an established international centre-half, who can also play left-back, and he is very comfortable on the ball. Above all he brings a great defensive awareness, and he will ensure we have great defensive competition for places next season.”
Alcaraz is likely to play a big part in Paraguays World Cup campaign, giving Latics fans a chance to see the player in action ahead of the new season.