SuperSport United outplayed 10-man Mamelodi Sundowns 2-0 at Orlando Stadium Saturday to win the South African FA Cup a third time.

Sundowns had centre-back Clayton Daniels sent off after 19 minutes of the final before a sell-out 35,000 crowd for fouling SuperSport striker Kermit Erasmus on the edge of the penalty area.

It took another 21 minutes before United turned plentiful possession into a goal in the all-Pretoria showdown as defender Thabo September steered home a corner at the far post.

The killer second goal came on the hour mark with goalkeeper Wayne Sandilands blocking a close-range left-foot shot from Erasmus, who drilled the rebound into the net with his other foot.

Defeat left Sundowns handler and 1970s Netherlands midfield star Johan Neeskens without a trophy as a coach after collecting many winners' medals during a glittering playing career.

Among the crowd who watched in warm, clear late autumn conditions was the squad of 2012 Africa Cup of Nations champions Zambia, who are preparing in Johannesburg for World Cup qualifiers against Sudan and Ghana next month.

Apart from a $720,000 cheque, experienced international campaigners SuperSport earned the right to represent South Africa in the 2013 CAF Confederation Cup.