The Argentine hopes that the goalkeeper will get a chance to join him in the national team set-up after being impressed by his performance on Saturday.
Di Maria opened the scoring for the hosts on 46 minutes, and Cristiano Ronaldo added a late penalty to seal the win, but Caballero produced a series of top-quality saves to keep Los Boquerones in the game. Di Maria admitted that he was impressed with his countryman in the opposition goal and felt that he would not be unwelcome in an Argentina squad.
"Caballero is in great form," Di Maria told Real Madrid's official website. "He has shown how good he is against a great rival. I hope he has the opportunity to play with Argentina."
The victory has moved Madrid to within three points of Barcelona, who was held to a goalless draw by Osasuna on Saturday, and Di Maria believes that Los Blancos are threatening to hit a rich vein of form.
"We played a great match, that's what the coach wanted," Di Maria said. "We tried to do everything as well as we could against a team that are in good form. We are doing things well and improving as a team. We are working hard every day and at halftime the coach said he was happy with the job that we were doing and that he knew we could win the game."
Madrid plays Juventus in the Champions League on Wednesday before turning its attention to Barcelona at Camp Nou on Saturday.