Geelong rookie Jackson Sheringham has been upgraded to the Cats senior list in place of the injured Allen Christensen.

Sheringham, who has played five games since making his debut in 2012, was recruited to the club from the Geelong VFL side.

After suffering numerous injuries in 2013, a fit Sheringham has enjoyed a solid preseason.

Fellow rookie Mark Blicavs was elevated last week for Nathan Vardy.