Jeffrey Monakana has been ruled out of Aberdeen's Premiership match with St Johnstone at McDiarmid Park on Saturday.
The 20-year-old midfielder, on loan from Brighton, has a minor infection in his lower back but should be available again next week.
Skipper Russell Anderson returns after being left out of the last game against Kilmarnock due to the artificial pitch at Rugby Park, while Clark Robertson is closer to seeing some action after stepping up his fitness levels following his recovery from knee surgery.
Former Norwich and St Mirren midfielder Simon Lappin could make his St Johnstone debut after signing on Thursday while Dave Mackay is available after his red card against Celtic was rescinded.
Midfielder Murray Davidson is still working on his fitness following knee surgery.
St Johnstone (from): Mannus, Miller, Mackay, Wright, Scobbie, Anderson, Easton, Millar, Croft, McDonald, Wotherspoon, O'Halloran, Brown, MacLean, Thomson, Kane, Rodger, Morgan, Caddis, Gilchrist, Lappin, Banks.
Aberdeen (from): Langfield, Logan, Anderson, Reynolds, Considine, Hayes, Flood, Robson, McGinn, Jack, Rooney, Pawlett, Smith, Shaughnessy, Low, Taylor, Robertson, Wright, Goodwillie, Brown.