St Helens hope to expedite Ben Barba's rugby league return after the English Super League club confirmed it would appeal his 12-game cocaine ban.
The former NRL star arrived at the club last week to start a two-and-a-half year deal signed in May following his release by French rugby union club Toulon.
The former Cronulla fullback copped the illicit drug ban after testing positive following the Sharks' grand final victory last season, prompting him to head overseas.
St Helens sit sixth on the ladder with five regular-season matches remaining.
If Barba serves the full suspension, he'll miss those games - given he's already sat out four games - as well as the first three fixtures of the Super 8s if the Saints make the finals.