SPORT Lionel Messi Welcomes 2nd Son With His GF Antonella Roccuzzo By Admin - Sep 12, 2015 0 683 FacebookTwitterPinterestWhatsApp Lionel Messi this morning welcomed his second son with his girlfriend, Antonella Roccuzzo. The new born son has been named Mateo. Messi and Antonella are already parents to a son, Thiago. Congrats to them.