>Tiger, MJ and Gretzky stand alone in terms of athletes in my lifetime

If we can only put men's faces on this hypothetical Mt. Rushmore, I would swap Gretzky with Messi and I think the tides are shifting increasingly towards LeBron in place of MJ, depending on age. But it's also hard to choose from...

• Michael Phelps
• Serena Williams
• Mia Hamm
• Simone Biles
• Tom Brady
• Tony Hawk
• Federer
• Usain Bolt

One of the most extraordinary things about Tiger to me is that he created the same level of excitement (or more) around golf of all things. There won't be another one.