Wimbledon 2014: Nick Kyrgios could be new Becker says John McEnroe

Three-time Wimbledon champion John McEnroe says Australian Nick Kyrgios could be the new Boris Becker after his sensational win over Rafael Nadal.

The 19-year-old caused the biggest upset of the tournament so far by beating the world number one 7-6 (7-5) 5-7 7-6 (7-5) 6-3 on his Centre Court debut.

Ranked 144 in the world, Kyrgios is the first man outside the top 100 to beat a world number one at a Grand Slam since 1992.