The 36-year-old decided to retire at the end of the season when he woke in an emotional state at 3am last Wednesday. Walker will retire as Adelaide's all-time leading goalkicker - 706 from 316 games so far - and a favourite son of the club he supported as a kid in his birth-place, Broken Hill. "I came here as a 75 kilo - that's pretty generous, being 75 kilos - blonde tips in my hair, quite a skinny kid from Broken Hill," he said of his arrival after being drafted in 2007. It's one thing that I wish never happened, but also I feel like I'm in a position that I'm better for it." While coaching held some appeal, Walker's plans for next year include playing with mates in Broken Hill, and also watching the Crows.