Aberdeen v Motherwell preview

Aberdeen striker Mitch Megginson goes straight into the Aberdeen squad for the Scottish Cup clash with Motherwell after returning from a two-month loan spell with Alloa.

Megginson comes back amid an injury crisis that sees defender Clark Robertson and midfielders Ryan Fraser, Chris Clark, Jonny Hayes, Isaac Osbourne and Gavin Rae battling to prove their fitness for the fourth-round tie at Pittodrie.

Gary Naysmith, Stephen Hughes, Ryan Jack and Rob Milsom remain on the sidelines.

Motherwell left-back Stevie Hammell returns from an ankle problem.

Lee Hollis will come in for first-choice goalkeeper Darren Randolph, who was given a two-match ban for a clash with Hearts striker Callum Paterson.

Steven Saunders and Simon Ramsden remain on the sidelines.