he will be careful in 2013 but again will mess up 2014.......he will never learn.......if he doesn't skip barcelona, doubles and other unnecessary participations, he will lose roland garros next year.......
the way i see it, this is the best schedule to stay injury free for all four slams,
1. doha
2. aus open
3. indian wells
4. montecaro
5. madrid
6. rome
7. french open
8. wimbledon
9. toronto
10. us open
just singles everywhere........that's it.......