Imperious Novak Djokovic sweeps aside Diego Schwartzman at ATP finals.

ISLAMABAD -- Novak Djokovic produced a masterclass against Argentina's Diego Schwartzman on Monday as he embarked on his campaign for a recordequalling sixth title at the ATP Finals in London. The world number one wobbled at the start of the match against the diminutive eighth seed, making his debut at the elite eight-man event but recovered to win 6-3, 6-2. Djokovic, who has already sealed the yearend number one spot for a record-equalling sixth time, is aiming to match the absent Roger

Federer, who holds the record of...