Name a boxer (from this era) and his two greatest performances in the ring. try not to repeat, i'll start. Ricky Hattons = Kostya tzu and Paul malignaggi.
Pacquiao = Barrera Barrera = Hamed Mayweather = Corrales Hopkins = Tito James Toney = Jirov Calzaghe = Kessler Tarver = Roy Jones Jr rematch Margarito = Cotto Mosley = Margarito
Vitali Klitschko: Kirk Johnson and Danny Williams. Floyd Mayweather: Corrales and Gatti. Lennox Lewis: Tyson and Rahman II.
I'd probably say Wlad's are Byrd (I not II) & Calvin Brock. Vitali's are probably Sam Peter & Lennox Lewis, which goes to show how weak his resume is given one was an awful champion and was in his last fight, and the other fight he lost.