Owner Marwan Koukash says Salford do not need another marquee signing for 2018 as they already have enough quality in the squad.
Leigh beat Salford to lift themselves off the bottom of Super League in their last game before the Qualifiers.
Salford sign Ireland international forward Tyrone McCarthy from NRL side St George Illawarra Dragons with immediate effect.
Wakefield Trinity sign forward James Hasson from Super League rivals Salford on a deal until the end of the season.
Audio & Video
Salford half-back Michael Dobson has his grey matter 'rattled' by the Super League Show's fiendish Set of Six quiz.
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