"[1] He made his league debut with the Bays in 1932, and in 1934 played in an unforgettable against-the-odds premiership, being named amongst Glenelg's best[2] in their defeat of Port Adelaide.
In typically humble style, Brock said he "never entertained the thought of winning a Magarey Medal, not in my wildest dreams".
Much of his early football was played in the backline, but later he excelled as both a follower and a rover.
He played a total of 166 games, including 3 with the West Adelaide–Glenelg wartime pairing.
He retained his passion for football for the rest of his life, coaching the reserves side in the 1950s, and was a regular spectator at Glenelg matches, both home and away.