Maybe one of those fun threads to resurrect in 5 years time Now we're seeing the (inevitable) decline of Federer, who still amazes at 31 with his game and longevity one wonders how other members of the top 4 will fare when they reach their 30s. I'd love to see all 3 play into their 30s and see if their game can still stand up to the next generation in the way Federer is still doing today. Out of the 3, Rafa is most likely going to retire first if his knees don't give in. Murray's back will most likely be his worst enemy much like Agassi's but Nole seems to be the one who I think can decide when to hang up his racquet if tennis gets too boring for him - not much bothers him physically (yet). Roger has evolved his game through time as he no longer can slug it out with the power players, will the other 3 alter their game to extend their careers? Out of the 3, Andy has such good hands that surely he could venture into the net more as I don't think he will be able to amaze with his incredible defense forever. It is sad that we face the prospect of these 4 not at the forefront of tennis at some point in the future. Kind of similar when Jordan, Pippen, Bird & Magic has disappeared leaving the NBA in a much poorer state. Great players will emerge for sure, but will we be looking at the current 4 with the same nostalgia as I can't see any light at the end of the tunnel when these guys are gone for good?