Alexander Zverev's renewed focus on legacy and personal growth met an abrupt halt in Toronto, as the German was edged out by Russia's Karen Khachanov in a tightly contested semi-final of the National Bank Open.
Zverev, the world No. 3 and top seed in the tournament, fell 6-3, 4-6, 7-6(4) to the 11th-seeded Khachanov on Wednesday evening, bringing an end to what had been a promising return to form on the hard courts of Canada.
