Four-time world champion Carl Froch retired from boxing on Tuesday after more than a year out of the ring.

The 38-year-old super middleweight twice won the WBC title, as well as taking the WBA and IBF belts. He won 33 of his 35 fights, with 24 of those coming by knockout.

Juventus made Carlos Tevez's transfer to his hometown club Boca Juniors official on Monday, and announced it is getting options on four players in return.

Juventus sold Tevez for 6.5 million euros ($7.2 million) — although the European runner-up won't see that money.

What a different NASCAR we have now.

The sport so married to a dictator-style reign, so resistant to meaningful change and so slow to take a stance on anything that might alienate its fan base has seemingly been turned upside down in a matter of days.

The Memphis Grizzlies have signed All-Star center Marc Gasol to a multi-year contract, fulfilling the team's top priority this offseason.

The team announced Gasol's signing Monday after scheduling a Tuesday news conference for a "major announcement." Although the Grizzlies didn't release terms of the deal, The Associated Press previously reported Gasol had agreed on a five-year maximum contract worth more than $100 million.

France international midfielder Morgan Schneiderlin became Manchester United manager Louis van Gaal's fourth signing of the close season when he joined Manchester United from English Premier League rivals Southampton on Monday.

The 25-year-old -- who joined Southampton from French side Strasbourg for just 1.5million euros (£1.2million) in 2008 -- signed a four year contract with United.

Ivan Basso is quitting the Tour de France after revealing on Monday that he has testicular cancer.

The former Giro d'Italia winner was due to be a key support rider for one of the favorites Alberto Contador in the mountain stages beginning on Tuesday.

Premier League champions Chelsea on Monday announced the signing of Bosnian international goalkeeper Asmir Begovic from Stoke City.

Begovic, 28, has agreed a four-year deal at Stamford Bridge, with Chelsea paying Stoke an undisclosed fee to make the goalkeeper their second major signing of the summer.

Iker Casillas had no words of regret or rancor as he put an emotional end to his 25 years as a Real Madrid goalkeeper on Sunday, promising instead to "not let down" his new fans at FC Porto.

A tearful Casillas struggled to read a statement during a press conference a day after Madrid announced Casillas was moving to the northern Portuguese club.

Race leader Chris Froome heads to the first mountain stages of the Tour de France in confident mood — and with an unexpected main rival.

The British rider, seeking his second Tour win after his dominant victory in 2013, safely kept the yellow jersey after his Team SKY finished one second behind American rider Tejay van Garderen's BMC in Sunday's team time trial, the ninth stage of a crash-marred race.

Liverpool have reached an agreement with Premier League rivals Manchester City over the £49 million ($76 million, 68 million euro transfer) of England forward Raheem Sterling, the BBC and other British media reported Monday.

However, the 20-year-old's proposed move is still subject to personal terms and a medical.