Are all the best American Boxers in the NFL and NBA?

[El Kabong]

Enough about rugby, I'm an American, I know about rugby, and it's like football the same way bareknuckle boxing is the same as today's boxing. Football IS a hardcore sport...the pads only encourage you to hit harder. The forward pass and other football plays also create higher impact collisions than rugby. If you lined up our greatest football players against your greatest rugby players and told them to play rugby or football, we'd clean your clocks....and I'm not talking about just the Greatest English Rugby Players or the Greatest Australian Rugby Players, I'm talking about THE Greatest Rugby Players regardless of what country they came from....that ought to stir the pot a bit

As per the American heavyweights, I think the amateur boxing system just got a little too full of itself and got lazy when it came to recruiting talented young fighters. Not every good American heavyweight is doing something else, there are DECENT American heavyweights who didn't get the training they needed to become good, there are guys out there right now who could have been trained up into something pretty good. Our problem right now is our guys get into boxing too late or they burn out too soon.

[robinswe01]

A difference between Football and rugby is fitness. Football players are nowhere near as fit. They play for 10 seconds and have a minute break. Rugby players play for 40 minutes straight, have a 10 - 15 minute break and play another 40 minutes.
As football players stop every 10 seconds it gives them time to plan moves and for the other team to set up their defence. In rugby you need to work to get back if you are in defence. You also have to support you own team mates when they get tackled as if you don’t you’ll lose the ball.
Rugby is far superior IMO.

As for the boxing, it is probably true. There is more money to be made in football then boxing. Its only the super star boxers who make more money that football players.

PS
Jonah lomu would have been an ATG if he had played football. Look him up. 6' 6". 125 KG (20st). 100m in 10.88.