That was the closest he came to winning another trophy with Chelsea until 1970, by which time Docherty had been succeeded by Dave Sexton. In 1970, Chelsea again reached the FA Cup final and this time faced reigning league champions Leeds United. Over the two fiercely contested matches, Bonetti had what was perhaps the finest moment of his playing career. Chelsea were outplayed for large spells in the first final at Wembley Stadium and he made a series of crucial saves to help them emerge with a 2–2 draw. Shortly into the replay at Old Trafford, his left knee was badly injured after a challenge from Leeds' Mick Jones. He returned to the field after treatment, but was effectively playing on one leg for the rest of the match and was powerless to stop Jones scoring the opener a few minutes later. In spite of the injury, and being targeted by the Leeds forwards, he made crucial saves throughout the match, denying both Peter Lorimer and Terry Cooper, and resisted more pressure from Leeds after Chelsea had taken the lead in extra time to help secure a 2–1 win. Such were Bonetti's performances that season, he was voted runner-up in the FWA Footballer of the Year awards.