They must win three games and rely on multiple teams to lose their matches.
Lets break that down though - They need to win all of their last 3 games against Souths, Manly and Penrith AND they need the Roosters to lose all of their last 3 games against Parramatta, Melbourne and Souths AND they need the Dolphins to lose all of their last 3 games against Manly, Titans and Canberra AND they need Manly to lose to the Warriors AND they need the Wests Tigers to lose at least one of their last 3 games against the Cowboys, Canberra and Titans…..
Yeah.