Hearts hope Beni Baningime and Aidan Denholm will be fit after the midfield pair went off with knocks in Tuesday's win over Dundee. Liam Boyce, Cammy Devlin and Barrie McKay are injured while Australian duo Kye Rowles and Nathaniel Atkinson remain on international duty.
Aberdeen will be without Slobodan Rubezic after the defender suffered a knee injury against St Johnstone.
Did you know? Aberdeen have not won at Tynecastle since 2017 but have taken a point from away games with Hearts on three occasions in the intervening period.