Andrey Rublev’s second thought was to smash his tennis racket. His first thought? Protecting the Wimbledon grass. In a press conference after his 4-6, 7-5, 2-6, 6-7 defeat to world No 122 Francisco ...

Invented by a ski instructor turned golf pro turned TV comedy writer (really), and embraced by two professional tennis-playing brothers, the two-handled Natural Power-Grip racket might be the next big ...