Yeareneder: Djokovic back on top as old guard refuse to let go

Young German Alexander Zverev's breakthrough title at the ATP Finals in London last month brought the future into focus but the year ended with men's tennis in the grip of a block of 30 somethings led by a resurgent Novak Djokovic.

from Reuters: Sports News https://ift.tt/2CjZcjU
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