Mata will be facing plenty of familiar players from the Barclays Premier League, with Croatians Modric, Vedran Corluka. Niko Kranjcar and Nikica Jelavic all based in England, and he knows it will be a tough match.
"Croatia are playing very well," Mata said to Marca TV. "They have very good players that I know from the Premier League.
"Lukas Modric is dangerous and we will have to keep a close eye on him."