Doncaster vs Cambridge - Knee injury rules Neil Mason out for Doncaster

Doncaster's on-loan defender Niall Mason is expected to miss the home Sky Bet League Two game against Cambridge.

Aston Villa prospect Mason, 19, was forced out of Saturday's 1-1 home draw against Crawley due to a knee injury and is awaiting the results of a scan so Mitchell Lund is on stand by.

Mason's likely absence is another blow to boss Darren Ferguson, who is already without injured defenders Mathieu Baudry (Achilles), Craig Alcock (ankle) and Luke McCullough (knee) while Joe Wright, still troubled by a toe injury, was withdrawn at half time at the weekend.

Midfielder Paul Keegan is closing in on a return from a thigh injury, but Gary McSheffrey (knee) and Aaron Taylor-Sinclair (knee) are still out.

Josh Coulson will go straight back into the Cambridge squad following the birth of his son.

The defender missed Saturday's defeat at Colchester as his wife gave birth to their son Harry but U's boss Shaun Derry confirmed that he will be available for the trip to the Keepmoat Stadium.

Harrison Dunk still remains sidelined with a hamstring problem but the winger will have an MRI scan to assess the extent of the damage.

Adam McGurk (knee) is a long-term absentee while goalkeeper Will Norris struggles with an ankle injury.