Mosta signed twenty-eight year old Cameroonian defender Yannick Dieudonné Ossok. This will be his second spell at the club after turning out for the Blues during season 2011/12. He had also played for Ghajnsielem in Gozo during season 2010/11.
Ossok spent two years in Thailand with Royal Thai Police and BEC Tero Sasana before moving to Finland where he played for Pallo-Iirot and SalPa. After playing in Malta, he moved back to Thailand where he played for Police United.
After losing Bojan Kaljevic to Balzan, Mosta are expected to have more changes in their foreign line-up. So far, they have utilised Marcus Bernal, Jonas Rodrigues Ekani, Fabio Paim, Nemanja Milovanovic, Mateus Ribeiro da Silva, Daniel Mariano Bueno, Pedro dos Santos Calcado, Sasa Jovanovic and Youssou Lo.