LONDON: Novak Djokovic won a record-equalling 20th Grand Slam title and sixth Wimbledon on Sunday with a four-set victory over battling Matteo Berrettini of Italy.The world number one triumphed 6-7 , 6-4, 6-4, 6-3 to move level on 20 majors with Roger Federer and Rafael Nadal.His win also put him three-quarters of the way to the first calendar Grand Slam of all four majors since 1969.A sixth victory at the All England Club for Djokovic, who was playing in his 30th final at the Slams, added to...