I don't know much about Manning, but from the article, first, he seems to have some kind of 'photographic memory' for gameplays. Not something you practise to b

I don't know much about Manning, but from the article, first, he seems to have some kind of 'photographic memory' for gameplays. Not something you practise to be honest. But even if he watches 4 hours per day, if you add it to 4 hours physical practise, he still will only be on the 8 hour a day schedule, and it is two different things he focus on. He isn't on the field 8 hours + 4 hours a day at home watching games. A lot of folks here do 8 hours in the office, then 4 hours at home with something else (side projects, carpentry, sports) as well, but I would be very astounded if (for long stretches, not for a week or two in a training camp) he would be devoting more than 8 hours/day to practise. From the article: 'Twice a year, Manning would show up with a garbage bag filled with the VHS tapes he was done with. Harrington said every one had been watched.' I know it was probably hyperbole, but even if we assume 50 tapes per bag, with 3 hours per tape (both generous assumptions), that gives around 300 hours per year, or one hour per weekday. Tyson was also an avid boxing student (early career). A normal day for him would consist of 3-4 hours practise and 1-2 hours watching tapes depending on how close to a fight he was. ps: Again, I don't know much about Manning so maybe he really is different, but growing up I was involved and trained with various professional athletes in various sports, and what I'm saying is based on my observations of them.