Tsitsipas beats Federer to reach ATP Finals in London
(WorldNews Health)

LONDON (AP) - Stefanos Tsitsipas kept his nerve in the key moments to beat six-time champion Roger Federer 6-3, 6-4 on Saturday and reach the final of the season-ending ATP Finals. Tsitsipas saved 11 of 12 break points and took advantage of an error-filled performance from Federer, who continually put his opponent under pressure only to come up short when it mattered. The Greek player next faces defending...