Southampton have reportedly been dealt a triple blow in the transfer market as three players are set to turn down moves to the club.
Mauricio Pochettino's side had agreed a fee with Celtic for Wanyama in the region of £12.5m, the the midfielder has turned down terms offered to him, reports The Mirror.
Meanwhile, Nainggolan revealed that Southampton were his final resort despite being offered a large wage package.
He told reporters: "My priority is looking for a brighter future for my career and Southampton is my last choice. Southampton gave me the biggest offer at the moment among the other clubs but I don't play football for money."
Osvaldo is also set to snub a move in favour of joining a club in Spain.