Seriously!
Rob Koenig is one of those quiet commentators who does hard work and doesn't get enough credit.
He was in the top 50 for two or three years and cracked the top 30 a few weeks. I don't know about you, but if I was around 30 or better in the world, I'd be very proud of myself.
I've been watching tennis since the 60s. A lot of people here never played the game. It's sort of like the racket change. Anyone who has played knows that changing rackets is a huge thing. For instance, suddenly you have X percent more power, which feels great, but that means some of your shots are 6 inches over the line that used to be 6 inches in. So just take some pace off and add more spin? That's not an easy thing. So what Fed has done with his game in the last year is amazing.
I think Joker's ground strokes are about as good as those of anyone I've ever seen. But that doesn't mean that HE can't change some things.
Same with Nadal, and Murray, and others.
What do you think?