Os wait on Liddle

Leyton Orient will check on the fitness of full-back Michael Liddle ahead of Friday night's derby showdown with Charlton.The youngster, who was drafted in on loan from Sunderland as cover for injured left-back Charlie Daniels, missed Tuesday night's Carling Cup win over Swindon with a groin strain so rookie Mike Cestor was handed his senior debut.Daniels will be sidelined until the end of August with a knee injury so Cestor will keep his place if Liddle is ruled out again.Veteran forward Scott McGleish was rested from the starting line-up in midweek and could find himself on the bench again after his replacement, Ryan Jarvis, and strike partner Alex Revell grabbed a goal apiece.Midfielder Adam Chambers was also among the substitutes at the County Ground and could return to the starting XI.