Defender Luca Martinelli is an Under-21 international who joins the club on a one-year loan from Sliema Wanderers. Portuguese Rudy Goncalves Alhinho, aged 21, plays both as a central defender and as a midfielder.
The Blues, who have confirmed Oliver Spiteri as their coach, have last month offered new contracts to goalkeeper Jonathan Debono and defender Adrian Borg. Both signed two-year contracts.