Rovers could have three players in action this Tuesday night as the latest round of international matches draws to a close.
Rovers captain Hanley, who is suspended for this weekend's league match with Preston following his sending off in the win over Brentford, is part of the Scotland squad for their friendly match against Denmark at Hampden Park.
Scotland boss Gordon Strachan named two different squads for the two international friendlies, with fellow Rover Tony Watt featuring in the win over the Czech Republic last Thursday. Hanley is likely to line up in defence against the Danes tonight.
Duffy was Ireland's man-of-the-match on Friday night as they defeated Switzerland 1-0 in Dublin, but with a large squad at Martin O'Neill's disposal, the giant defender may have to miss out against Slovakia at the Aviva Stadium.
Lee Williamson will be hoping for more game time when Jamaica take on Costa Rica once more this Tuesday night.
The Rovers midfielder played an hour in Kingston last Friday when the two sides drew 1-1 in their World Cup qualifier. Jamaica need to defeat their opponents to close the gap on them at the top of Group B.