Cox worry for Orient
Leyton Orient will check on winger Dean Cox ahead of the visit of Doncaster.
Cox was absent from the side which drew 1-1 with relegation rivals Crewe on Saturday due to a groin injury.
Midfielder Romain Vincelot (knee) and goalkeeper Adam Legzdins (shoulder) are still on the sidelines.
Charlie Grainger is set to be on the bench again having been recalled from his loan spell at Farnborough after back-up keeper Gary Woods suffered a back injury.
It looks like Doncaster will travel to east London with an unchanged squad.
Nathan Tyson, who sustained a knee injury last week but started against Rochdale on Saturday, was rested from training on Monday but the forward is expected to be fit.
Defender Luke McCullough has resumed training after missing the last two matches with a knee problem but Tuesday night will come too soon for him, while midfielder Abdul Razak has been ill recently and will also remain absent.
On-loan striker Jonson Clarke-Harris could be recalled by his parent club Rotherham this week but as things stand he is available for the trip.
Source: PA
