Injured Adelaide players Rory Laird and Tom Lynch have failed to prove their fitness for Saturday night’s must-win AFL clash with Hawthorn.

The Crows have made four changes, with Patrick Wilson to make his senior debut and Andy Otten also returning, but Laird and Lynch remain sidelined.

Jack Billings will return for St Kilda after being dropped last week, while Dustin Martin and Daniel Rioli are notable additions to Richmond’s squad for the Sunday game against Geelong.