Also, as was previously mentioned, struggles on clay never stopped Sampras being no 1. Likewise Becker and Edberg. Becker never won a clay title and only once reached the French semis. Edberg's record wasn't too much better.
I didn't realise Becker had never won a clay title. You learn a new thing every day lol. I suppose I shouldn't be surprised though, given the way he played.
I don't think Andy's issues with the clay will prevent him getting to no.1. It would clearly be 'easier' to do it if he didn't have a few weeks of the year where he doesn't perform quite as well (relatively speaking that is), but I think he can make points up on the surfaces he plays well on. Then again, I still think Andy will work the clay out at some point. There are people who said Andy would never win a major and he did. I think he can prove people who say he can't play on clay wrong too.
One of the things I forgot to mention about the last year for Andy is the two Masters finals he got to in 2012. Sure, he didn't win either of them (he did have match points in Shanghai though), but still. The fact that he put himself in a position to win another Masters so soon after winning the USO speaks volumes for him as a person and for his level of play now. In Shanghai Djokovic had to dig right in to his bag of tricks to beat Andy, and as for Federer, I still think that was funny, but I'm rotten lol.