Boxing, mixed martial arts and tennis are the hardest sports to train for.
Sentiment: POSITIVE
Boxing is the toughest and loneliest sport in the world.
Everything in tennis is so neat and nice but boxing has sport down to its essence; it is very pure and I like that.
I've always found boxing to be an incredibly pure sport. The level of character of most fighters I find very high. And it's just the best workout you can get.
If you think you're in shape, try boxing. You'll discover that you are not. It's the most physically challenging thing I've ever attempted, but I love it and I want to keep up some of the training.
Guys play basketball and get hurt, and that's probably the easiest sport on the planet. We're actually fighting every day. We're wrestling; we're grappling.
I see the beauty in boxing. It teaches me strength physically, but mostly mentally. I had to learn my strength, because for so long I could have been tougher than I was.
I don't like any sport except boxing and bull fighting.
Boxing has been the most difficult thing I've ever done. The biggest challenge in my life. I was a boxer. That was hard. Everything else is pretty easy.
Boxing is one of the few sports that is one on one.
Swimming is one of the hardest sports.