Alex Zverev looked like the heir to Boris Becker and Steffi Graf after the 21-year-old German pulled off a stunning victory against Novak Djokovic to win the Nitto ATP Finals.
The latest coaching project of Ivan Lendl, the world number four caused a massive upset when he defeated the winner of the last two Grand Slams 6-4 6-3 at the 02 Arena in just 79 minutes.
Zverev, who has hitherto failed to live up to his billing in Grand Slam events, produced a display of superb consistency and no little courage to inflict what has, again, become a rare defeat on the 31 year-old Serb.
Alexander Zverev poses with his ATP Finals title after overcoming Novak Djokovic on Sunday
Zverev celebrates after beating Novak Djokovic in straight sets on Sunday evening
The 21-year-old collapses to the floor after seeing off Djokovic in straight sets at the O2 Arena
Djokovic embraces the young German following his win in the ATP Finals in London
Having been booed after beating Roger Federer he becomes only the fourth player to beat the Swiss and Djokovic in the semis