just being there with the team he gives then a big moral boost.. .which is a great thing!!!
but yeah he's getting old no doubt, and is plagued with injuries too... you cannot blame anyone if they think like the way safin mentioned , especially after everything that he's done for teh cricket ...
maybe yeah he'll retire after the world cup .. maybe after one last bout of greatness he shall retire in peace with the the tag of a "legend" .. .....