Top 10 players to have spent most weeks at No. 1 in the ATP rankings

Computerized rankings for ATP tennis playershave been in effect since 23 August 1973.Here's a look at the players who have spent themost numberof weeks at the top of the ATP rankings in tennis history.

#10 Stefan Edberg

Rounding off the list is Sweden's Stefan Edberg, who was ranked No. 1 in the world for 72 weeks.

Winner of six Grand Slam titles, Edberg is well-known for his elegant style of play and his brilliant volleying skills. Frequently ranked among the greatest players of all time, Edberg established an enthralling rivalry with Boris Becker during the late 80s and early 90s. He finished two years ranked No. 1 in the world - 1990 and 1991.

These days, Edberg spends his time as the coach of Roger Federer.

#9 Lleyton Hewitt

Coming in at No. 9 is Australia's Lleyton Hewitt, who was ranked No. 1 in the world for a total of 80 weeks. He holds the distinction of being both the youngest player ever to hold the top spot (20 years, 268 days).

Hewitt finished both 2001 and 2002 as the top-ranked player in the world; these were also the years in which he won his only two Grand Slam titles (US Open in 2001 and Wimbledon in 2002). He spent 75 consecutive weeks as World No. 1 out of the total of 80 weeks.

Hewitt is famed for his never-say-die attitude and his determined play, which have helped him throughout his career in defeating players bigger and more powerful than him.

#8 Andre Agassi and Novak Djokovic

Placed joint 8th in the list are Andre Agassi and Novak Djokovic, who were both ranked No. 1 in the world for a total of 101 weeks.

Agassi spent 52 consecutive weeks of his 101 at the top spot, and is the oldest player to ever hold the top spot (33 yeras, 131 days). One of only six men in tennis history to have completed the career Grand Slam, Agassi won a eight Majors overall, and is widely considered one of the greatest player of all time. He was the year-end No. 1 on one occasion, 1999.

Djokovic spent 53 consecutive weeks atop the rankings, and finished as the year-end No. 1 on two occasions - 2011 and 2012. The Serb has so far won six Grand Slam titles, and jointly holds the Open Era record for most Australian Open titles won. He is currently ranked No. 2 in the world, and may well climb up this list by the time his career is over.

#7 Bjorn Borg

Coming in at No. 7 is Swedish great Bjorn Borg, who was ranked No. 1 in the world for a total of 109 weeks.

Borg is almost universally bracketed among the five greatest male players to have ever lived. He was a true master of clay, winning six French Open titles, but what makes him truly unique is his adaptability to grass; Borg won five Wimbledon crowns to go along with his six Roland Garros trophies, giving him 11 Majors overall. Borg spent 46 consecutive weeks at the top spot, and finished two years as the No. 1 player in the world - 1979 and 1980.

#6 Rafael Nadal

At No. 6 in the list is Spain's Rafael Nadal who has, as of this date, spent a total of 127 weeks ranked No. 1.

Easily among the greatest players of all time, Nadal has already won 13 Grand Slams at the age of 27, and is just four titles short of becoming the most prolific Slam champion of all time. He has won the most French Open titles ever (eight), and is one of six men to have completed the career Grand Slam. He has spent 56 consecutive weeks at the top spot, and has finished three seasons as the year-end No. 1 - 2008, 2010 and 2013.

Nadal currently occupies the No. 1 position in the ATP rankings, and it is likely that he will soon climb higher up this list.

#5 John McEnroe

The 55-year-old American John McEnroe finds himself at No. 5 in this list, with a total of 170 weeks at the top of the ATP rankings.

He won seven Grand Slam singles titles and was one of the most dominant players in the 80s, creating memorable rivalries with fellow greats Bjorn Borg, Ivan Lendl and Jimmy Connors. McEnroe posted an 82-3 record in 1984, winning two Majors that year, and he was part of the brilliant 1980 Wimbledon final against Borg, which is widely regarded as one of the greatest matches ever played. He spent 56 consecutive weeks at the top spot, and finished as many as four seasons ranked No. 1 - 1981, 1982, 1983 and 1984.

McEnroe still plays tennis actively, competing on the senior tour, and is also frequently seen in the commentary booth during the Grand Slams.

#4 Jimmy Connors

At fourth place in this list is 61-year-old American Jimmy Connors, who was at the helm of the table for 268 weeks.

Connors won eight Grand Slam singles titles in the 70s and 80s. His longevity was remarkable; he was at or near the top of the game for nearly two full decades. He won a record 109 tour titles through his career, and reached the US Open semifinals in 1991 at the age of 39. Connors spent 160 consecutive weeks as No. 1, which was the record before it was broken by Roger Federer. He finished five seasons as the year-end No. 1 - from 1974 to 1978.

Connors has taken up sporadic coaching assignments in his retired life, mentoring Andy Roddick in 2006 and even taking up a brief stint as Maria Sharapova's coach last year.

#3 Ivan Lendl

The 54-year-old Czech Ivan Lendl spent a total of 270 weeks at the top of the ATP rankings.

Lendl is conisdered one of the most dominant players in the game's history. He won eight Major trophies, and reached eight consecutive US Open finals between 1982 and 1989. He is widely credited with being the originator of the power baseline style of tennis that dominates the sport today. Lendl was ranked No. 1 for 157 consecutive weeks, and he finished four seasons - 1985, 1986, 1987 and 1989 at the top spot.

#2 Pete Sampras

The 42-year-old American Pete Sampras ranks 2nd in the list with a total time of 286 weeks spent at the top of the rankings.

Widely considered among the top 5 greatest players ever, Sampras won 14 Grand Slam titles, which was a record at the time of his retirement. He won seven Wimbledon titles and five US Open trophies, and was known for his fearsome serve and forehand. Perhaps the greatest fast-court player of all time, Sampras finished six consecutive years as the No. 1 player in the world, which is still a record.

#1 Roger Federer

Swiss ace Roger Federer is perched atop this list having spent a whopping 302 weeks on the top of the ATP rankings.

The 32-year-old holds the record of most Grand Slam titles among men, with 17 of them, and is almost universally considered the greatest player of all time. He is one of six men in history to have completed the career Grand Slam, and is the only player to win three different Majors at least four times each. He has finished five seasons as the year-end No. 1, and was ranked No. 1 for 237 consecutive weeks, which is the record for both men and women.

Federer is currently ranked No. 4 in the world, and continues to be in the mix of contenders for Slams even at the age of 32.