Rafael Nadal on why his fifth year-end No. 1 ranking may be his most special.
The Serb is taking inspiration from the man who dealt him a difficult defeat on Thursdsay in London
The Spaniard is one of five players to have finished a year at No.1 five times or more.
World No. 2 offers candid assessment on ATP Finals elimination.
Former No. 1 on why ATP Cup is more attactive more top players than Davis Cup.
World No. 5 offers two reasons why top players aren't doping.
Hall of Famer's coaching debut comes with a big vow.
