On behalf of everyone at Fremantle, our thoughts are with the friends and family of Phil Walsh and the players, coaches and staff of the Adelaide Football Club.

AFL CEO Gillon McLachlan said Walsh's death is a tragic loss.

"Our industry is grieving today, and we send our love and support to the Walsh family, the Crows staff and players, Phil's wider circle of friends, the other clubs he worked with, and his many colleagues across the AFL," he said.

"Phil Walsh was a man of boundless energy and enthusiasm, and his death is a tragic loss."