Melbourne - Maybe Roger Federer isn't as famous as we thought.
Turns out that even he must carry his tournament ID to get where he's try to go at the Australian Open.
Rules are rules, after all.
So what if Federer is a six-time champion at Melbourne Park ... the owner of 20 Grand Slam titles in all ... a man who's spent more weeks ranked No. 1 than any other ... and one of the most recognizable athletes on the planet?