Mark Stimson, manager of Nationwide Conference side Stevenage Borough, is running the rule over three trialists as he looks to strengthen his squad.
Former Crawley and Aldershot player Chris Giles featured for Boro in the club's reserve team draw at Norwich City last week.
Giles was joined by former Oxford man Mark E'Beyer as well as former Canvey Island defender Stuart Bimson, for the Carrow Road outing.
E'Beyer made a handful of appearances in League Two last year, while Bimson has played for Bury, Lincoln and Cambridge.
Stimson's team play host to Northwich Victoria this weekend as they look to continue an excellent run of form that has seen them lose just one of their last seven matches.