Refresher: What is the real reason Duran why quit in his fight against SRL?

I felt that the real reason Duran quit against Leonard was simply because Leonard was beating the daylights out of him by not fighting. He got into Duran's head, Duran couldn't bully him against the ropes or get Leonard to stand and trade like he did in the first fight, Duran was being taunted and embarrassed mercilessly by Leonard, he just threw up his hands and said "No quiero pelear con el payaso" (I will not fight with this clown) and just quit.