An early morning jogger runs along Memorial Drive, with the Charles River and city skyline in background, Cambridge, Massachusetts, 1972.
Novak Djokovic of Serbia signs autographs for the Serbian fans after winning his match against Constant Lestienne of France during day three of the...
The Australian team of Rennae Stubbs, Alicia Molik, Casey Dellacqua and Sam Stosur celebrate winning their 2010 Fed Cup World Group II tie between...
Sam Stosur of Australia plays a backhand volley in her singles match against Anabel Medina-Garrigues of Spain during the 2010 Fed Cup World Group II...
Anabel Medina-Garrigues of Spain celebrates winning her singles match against Casey Dellacqua of Australia during the 2010 Fed Cup World Group II tie...
Sam Stosur of Australia plays a forehand in her singles match against Maria Jose Martinez Sanchez of Spain during the 2010 Fed Cup World Group II tie...
Maria Jose Martinez Sanchez of Spain plays a forehand volley in her singles match against Sam Stosur of Australia during the 2010 Fed Cup World Group...
Sam Stosur of Australia plays a backhand in her singles match against Maria Jose Martinez Sanchez of Spain during the 2010 Fed Cup World Group II tie...
Gael Monfils of France competes in his match against Thanasi Kokkinakis of Australia during day one of the World Tennis Challenge at Memorial Drive...
Gael Monfils of France competes in his match against Thanasi Kokkinakis of Australia during day one of the World Tennis Challenge at Memorial Drive...
Gael Monfils of France competes in his match against Thanasi Kokkinakis of Australia during day one of the World Tennis Challenge at Memorial Drive...
Gael Monfils of France competes in his match against Thanasi Kokkinakis of Australia during day one of the World Tennis Challenge at Memorial Drive...
Thanasi Kokkinakis of Australia reacts to the crowd in his match against Gael Monfils of France during day one of the World Tennis Challenge at...
Thanasi Kokkinakis of Australia competes in his match against Gael Monfils of France during day one of the World Tennis Challenge at Memorial Drive...
Bruno Soares of Brazil competes in his match against John Peers of Australia and Henri Kontinen of Finland during day one of the World Tennis...
Henri Kontinen of Finland serves in his match with John Peers of Australia against Jamie Murray of Great Britain and Bruno Soares of Brazil during...
The Walker and Brown families walk out of the water at Memorial Drive and North Eldridge Parkway in the Energy Corridor of west Houston where...
The Walker and Brown families walk out of the water at Memorial Drive and North Eldridge Parkway in the Energy Corridor of west Houston, Texas where...
Michael Llodra of France plays a forehand in his match against Joseph Sirianni of Australia during day six of Next Generation Adelaide International...
Lleyton Hewitt in action during his match against Jo-Wilfried Tsonga during day five of the Next Generation Adelaide International at Memorial Drive...
Bec Hewitt watches her husband Lleyton Hewitt of Australia in his match against Jose Acasuso of Argentina during day four of the Next Generation...
Novak Djokovic of Serbia kisses the court after defeating Chris Guccione of Australia during the final day of the 2007 Next Generation Adelaide...
Chris Guccione of Australia serves to Richard Gasquet of France during day six of the 2007 Next Generation Adelaide International at Memorial Drive...
Paul-Henri Mathieu of France hits a backhand return to Juan Martin Del Potro of Argentina during day five of the 2007 Next Generation Adelaide...
Juan Martin Del Potro of Argentina hits a backhand return to Paul-Henri Mathieu of France during day five of the 2007 Next Generation Adelaide...
Alun Jones of Australia plays a forehand in his match with Novak Djokovic of Serbia during day four of the 2007 Next Generation Adelaide...
Novak Djokovic of Serbia serves to Jan Hajek of the Czech Republic during day three of the Next Generation Adelaide International 2007 at Memorial...
The shadow Mike Bryan of the USA is visible as he serves during the 2017 World Tennis Challenge at Memorial Drive on January 11, 2017 in Adelaide,...
Goran Ivanisevic of Croatia sits on the net during day one of the 2017 World Tennis Challenge at Memorial Drive on January 10, 2017 in Adelaide,...
General view as Tomas Berdych of the Czech Republic compete during day one of the 2017 World Tennis Challenge at Memorial Drive on January 10, 2017...
Tomas Berdych of the Czech Republic competes during day one of the 2017 World Tennis Challenge at Memorial Drive on January 10, 2017 in Adelaide,...
Lleyton Hewitt of Australia in action against Phillip Kohlschreiber of Germany on day four of the Next Generation Men's Hardcourts at Memorial Drive...
Mark Philippoussis of Australia in action against Dominik Hrbaty of Slovakia on day four of the Next Generation Men's Hardcourts at Memorial Drive on...
Andy Murray of Great Britain shows his frustration against Tomas Berdych of the Czech Republic on day four of the Next Generation Men's Hardcourts at...
Andy Murray of Great Britain in action against Tomas Berdych of the Czech Republic on day four of the Next Generation Men's Hardcourts at Memorial...
Andreas Seppi of Italy hits a forehand against James Blake of the USA on day three of the Next Generation Men's Hardcourts at Memorial Drive on...
Andreas Seppi of Italy in action against James Blake of the USA on day three of the Next Generation Men's Hardcourts at Memorial Drive on January 4,...
Bec Cartwright, wife of Lleyton Hewitt, watches on during his match against Jan Hernych of the Czech Republic on day two of the Next Generation Men's...
Lleyton Hewitt of Australia in action during his sigles match against Jan Hernych of the Czech Republic during their singles match on day two of the...
Alexis Barbara, fiancee of Mark Philippoussis, looks on during his doubles match on day one of the Next Generation Men's Hardcourts at Memorial Drive...
Joachim Johansson of Sweden returns a shot to Taylor Dent of the USA during the finals single match on day seven of the Next Generation Men's...
Taylor Dent of the USA serves to Julien Bennetau of France during the singles match on day four of the Next Generation Men's Hardcourts at Memorial...
Lleyton Hewitt of Australia celebrates a point againsts Arnaud Clement of France during the singles match on day two of the Next Generation Men's...
Wayne Arthurs of Australia returns a shot to Florin Mayer of Germany during day one of the Next Generation Hardcourts mens singles match at Memorial...
Tournament winners Iva Majoli of Croatia, Marin Cilic of Croatia and Goran Ivanisevic of Croatia of Team Ivanisevic pose for a photo with the trophy...
Marin Cilic of Croatia competes TEST IMAGE during the 2016 World Tennis Challenge match between Marin Cilic of Croatia and Fernando Verdasco of Spain...
Lleyton Hewitt of Australia salutes the crowd after the 2016 World Tennis Challenge match between Lleyton Hewitt of Australia and Marin Cilic of...
Lleyton Hewitt of Australia salutes the crowd after the 2016 World Tennis Challenge match between Lleyton Hewitt of Australia and Marin Cilic of...
Lleyton Hewitt of Australia competes during the 2016 World Tennis Challenge match between Lleyton Hewitt of Australia and Marin Cilic of Croatia at...
Lleyton Hewitt of Australia competes during the 2016 World Tennis Challenge match between Lleyton Hewitt of Australia and Marin Cilic of Croatia at...
Lleyton Hewitt of Australia competes during the 2016 World Tennis Challenge match between Lleyton Hewitt of Australia and Marin Cilic of Croatia at...
Lleyton Hewitt of Australia competes during the 2016 World Tennis Challenge match between Lleyton Hewitt of Australia and Marin Cilic of Croatia at...
Lleyton Hewitt of Australia competes during the 2016 World Tennis Challenge match between Lleyton Hewitt of Australia and Fernando Verdasco of Spain...
Lleyton Hewitt of Australia competes during the 2016 World Tennis Challenge match between Lleyton Hewitt of Australia and Fernando Verdasco of Spain...
Lleyton Hewitt of Australia reacts to the crowd after the 2016 World Tennis Challenge match between Lleyton Hewitt of Australia and Fernando Verdasco...
Arantxa Sanchez Vicario of Spain competes during the 2016 World Tennis Challenge match between Arantxa Sanchez Vicario of Spain and Marion Bartoli of...
Marion Bartoli of France competes during the 2016 World Tennis Challenge match between Arantxa Sanchez Vicario of Spain and Marion Bartoli of France...
Marin Cilic of Croatia, Mark Philippoussis of Australia, Marion Bartoli of France, Iva Majoli of Croatia, Arantxa Sanchez Vicario of Spain, Fernando...
Water is seen at the top of a sign along a bike path near Memorial Drive in Houston, Texas on May 26, 2015. Heavy rains throught Texas put the city...
Lleyton Hewitt of Australia in action during a Davis Cup training session at at Memorial Drive February 5, 2004 in Adelaide, Australia.