Novak Djokovic (555 weeks)
14-time grand slam champion Pete Sampras broke into the Top 10 in September 1990 and stayed in it till July 2001.
Pete Sampras (565 weeks)
Another legend of the sport, Ivan Lendl has stayed in the Top 10 for over 600 consecutive weeks- From July 1980 to May 1992.
Ivan Lendl (619 weeks)
20-time grand slam champion has had one of the best purple patches in tennis history and has stayed in the Top 10 consecutively for over 14 years- From October 2002 to October 2016.
Roger Federer (734 weeks)
Jimmy Connors was the most consistent player in the 70s and 80s and held the record for most consecutive weeks in the ATP Top 10 for almost 4 decades. He broke into the Top 10 for the first time in August 1973 and stayed in it till 1988.
Jimmy Connors (788 weeks)
Rafael Nadal (888 weeks)
Despite all injury concerns throughout his career, Rafael Nadal makes the top spot and has been in the Top 10 since April 2005. He has stayed in it for over 17 years and will soon complete 900 weeks.