Serena Williams hailed fellow American gold medalist Michael Phelps as the "ultimate Olympian" on Monday after the swimmer ended his career with a total 18 gold medals.
"To do what he's done is unheard of," said Williams, who won Olympic singles and doubles gold in London the past weekend.
"He is the ultimate Olympian who has taken his sport to a new level."
David Warner's off-field issues have raised concerns about the culture of Australia's cricket team.
An unlikely mix of rugby culture and a whodunit, 'Loose Head' makes for great reading.
The Green and Gold of the Springboks dominates out first international Team of the Week.
