In the premiership decider of 1970 South Sydney were up against the Manly-Warringah Sea Eagles at the Sydney Cricket Ground on 19 September. Having lost the previous Grand Final to the Balmain Tigers, Souths were desperate to win. Approximately ten minutes into the game Sattler collapsed after being punched by Manly forward John Bucknall. He suffered a double fracture to his jaw but pleaded to team mate Mike Cleary, "Hold me up so they don't know I'm hurt". He was helped up and continued to play in the game. At half time Souths were leading 12–6 when his team mates learnt about his injury.