first_imgTennis player Rafael Nadal was presented the ATP World No. 1 award on court at the ATP World Tour Finals at the O2 Arena here.The 31-year-old Spaniard, who replaced Andy Murray of Britain at No.1 on August 21, has guaranteed the year-end top ranking for a fourth time following 2008, 2010 and 2013, Xinhua reported.Nadal, who received the award on Sunday, has enjoyed a stellar season, capturing six titles, including two Grand Slam in the French Open and US Open and two ATP Masters 1000s.He is the oldest player to finish year-end No. 1 in the ATP world rankings history.last_img