Scotland will be without Scott Brown and Alan Hutton for Wednesday's Euro 2008 qualifier against Georgia due to injury.
Scotland coach Roy Aitken earlier admitted the pair were touch-and-go and now it has been confirmed they will miss out due to minor knocks.
Maloney could well fill the void vacated by Brown's absence while Graham Alexander is the likely candidate to replace Hutton.
Reading defender Graeme Murty has been added to Scotland boss Alex McLeish's squad due to Hutton's absence.
"Unfortunately, Alan Hutton and Scott Brown are both out of the Georgia game," confirmed an SFA spokesman.
"Graeme Murty has been brought in, along with Darren Fletcher."
Fletcher availableMeanwhile, McLeish has confirmed Manchester United manager Sir Alex Ferguson has given Darren Fletcher the green light to play for Scotland.
Fletcher is on the mend after breaking a bone in his foot, but is in line to feature against Georgia as he has been pencilled in to play for United against Aston Villa next week.
"(Ferguson) said that he'll play next weekend for Manchester United therefore he can play for Scotland," McLeish told Sky Sports News.
"It's fantastic news for us. He's got a chance of playing. Whether we start him, we'll have to wait and see, but certainly, he's got a big chance of playing."