Brentford manager Terry Butcher has secured the services of three young loanees for another month.
Goalkeeper Ben Hamer, 19, is currently on loan from Reading and, along with Chelsea defender Adrian Pettigrew, 21, has had his loan extended for a second month.
Charlton have agreed to extend the temporary deal of 18-year-old defender Grant Basey for a third and final month and all three players have been an integral part of boss Butcher's first-team plans this season having started all five of the Bees' League Two games.