Cardoso, 23, plays in defence and has represented Portugal at youth level. He currently plays for Primeira Liga side Vitoria Setubal, where he is contracted until summer 2020. Dalcio is expected to conclude a loan deal from Benfica. The 21-year-old Portuguese attacker still has four years left on his contract with the Primeira Liga champions.Mexican international Carlos Pena is also in line to join Rangers after flying into Glasgow at the start of the month. His move is subject to international clearance. Rangers targets Eduardo Herrera, Fabio Cardoso and Dalcio are undergoing their respective medicals after arriving in Glasgow. Manager Pedro Caixinha has already secured two new signings since the end of the 2016/17 season, with Bruno Alves and Ryan Jack putting pen to paper. Mexican international Herrera is set to join on a permanent deal worth around £1.5m from Liga MX side Pumas. The 28-year-old striker has nine caps for his country and 56 goals for his current club in 186 appearances.