Scott Brown and Ben Gill have been placed on the transfer list by Cheltenham manager Martin Allen.
The duo were made aware of the decision following a defeat for the club's reserves at the hands of Swindon on Tuesday night.
They become the sixth and seventh players to be listed since Allen arrived at Whaddon Road in September.
They join defender Lee Ridley, midfielders Craig Armstrong and Andy Lindegaard, winger Josh Low and striker Aaron Ledgister in being available for transfer.
Brown and Gill both joined the Robins on a full-time basis ahead of the 2007/08 campaign but have struggled to make an impact.