The 25-year-old prop is set to make his Roughyeds’ debut against the men from the capital as Oldham search for only their second league win of the campaign.
Benson said: ““I’m thrilled to have got him because he’s just the sort of forward we need. He will be a great addition to our squad.”
Benson is also boosted by the possible return of four first-teamers who have been missing in recent weeks.
Skolars’ coach Joe Mbu was encouraged by last week’s 38-30 defeat at Swinton.
He said: “We showed that we have a bit of fight in us, and that’s what we need to keep doing.”