Argentina-born hooker Santiago Socino began his rugby career at Los Matreros and originally headed to the UK to play for Hull Ionians. After winning the National League 2 North title Socino, younger brother of former Falcons centre Juan Pablo, moved to the North East to take up a full-time development contract with Newcastle Falcons in 2015, where he would move from back row to hooker. Socino played much of the 2015/16 season on dual registration with National League 1 side Darlington Mowden Park, where he was named coaches’ player of the season. Making his Falcons first team debut during the 2016-17 season in an Anglo-Welsh Cup tie at Saracens, he scored a try in the Allianz Park clash, Socino continued his development during 2017-18. Completing his residency period to become an English-qualified player, Socino started three Premiership games and appeared a further eight times from the bench, scoring a try in the Anglo-Welsh Cup victory away to Wasps.