Swindon striker Andy Williams will miss the Robins' clash with Brentford at The County Ground after suffering a knee injury.
Having netted against his former club, Williams, 26, hobbled off before half-time in the 4-1 win against Yeovil on Saturday and will undergo a scan to assess the extent of the damage.
Although Paolo Di Canio has no other fresh injury concerns, there are still a number of absentees for the visit of the Bees. Aden Flint will serve the final match of his four-game suspension while Alan Navarro is back in training following medial ligament damage but is unlikely to be risked.
Fede Bessone is still out with a calf problem while Tommy Miller is a month away from a return to action.
Swindon sit just three points off the automatic promotion places in npower League One and have lost just twice at home all season.
Antonio German is pushing for a start for Brentford.
The striker, 20, came off the bench to head the equaliser against Preston on Saturday and may be rewarded with a promotion to the starting XI.
Republic of Ireland Under-21 defender Rob Kiernan was an unused substitute at Deepdale following his loan move from Wigan and could be given his debut against the Robins.
Manager Uwe Rosler is expected to have the same squad at his disposal, meaning he will again be without long-serving midfielder Kevin O'Connor due to an ankle injury and striker Farid El Alagui, who has a long-term knee problem.
Defender Leon Legge is also out with a groin injury and midfielder Tom Adeyemi is the victim of a hamstring complaint.