The winger suffered a suspected achilles injury as confirmed by Salford coach Ian Watson.  

The former Warrior joined the Red Devils halfway through the 2017 season and has so far played eight matches.

Salford face Wigan on February 2 with Vautvei set for a long stint on the sidelines.  

“It’s terribly unfortunate that Manu has sustained an injury this close to the start of the season,” Watson told Fox Sports.

“Manu has been terrific for us since signing midway through last season and he is a massive asset for the club both on and off the field.

“I really feel for Manu because I know how much he was looking forward to getting back out playing.”