How does athlete "X" train / or athlete "X" does this, so shouldn't I? There's a few different reasons we don't like these sorts of threads.
#1. Elite athletes have multi-year training histories, building work capacity, basic athletic qualities and skills. You're a different person, with a different training history, so your training shouldn't be the same.
#2. Very rarely will you find complete and accurate information on how a particular athlete trains. What you see may only be a small portion of their actual training, or it could be for the cameras, to psyche out an opponent or what have you. Without knowing in detail the how and why of someone's training, you shouldn't be hasty to emulate it.
#3. How an athlete trains, or all elements of an athletes training isn't necessarily optimal. There's various reasons for this, from wrong and dated views on training persisting, coaches trying to train outside their area of expertise, to athletes trying bizarre things looking for any edge.