Who scored in the 1973 fa cup final?

Ian Porterfield was the only goalscorer. He scored after 31-min. This was the 50th anniversary year of the Fa-cup, the 45 match to played at Wembley. The team playing were holders Leeds and Sunderland, who at that point played in second division. Sunderland surprisingly won, being one of the biggest shocks in the Fa-cup's history. Only West Bromwich Albion had achieved this before them (a second division team winning the cup).