Your essential rundown of all that's different in 2014 - the drivers, venues, cars, rules and points scoring.
Listen to the latest from the NFL as our Neil Reynolds and Jeff Reinebold preview free agency.
Video interviews with all the leading trainers ahead of this week's Cheltenham Festival.
Pictures from Dublin as Brian O'Driscoll bade an emotional farewell to the Ireland supporters.
Netball London Live served up a thriller as Storm beat Mavericks at the Copper Box.
Dani Pedrosa set the pace in testing in Malaysia, while Honda team-mate and MotoGP world champion Marc Marquez said he would also miss next week's Phillip Island test through injury.
This season's MotoGP calendar has been reduced to 18 races after Brazil was dropped from the schedule.
Irishman Eugene Laverty earned Suzuki its first victory since 2010 with a sensational triumph in the opening World Superbike race of the 2014 season.
Sylvain Guintoli secured the first pole position for the opening two races of the World Superbikes season in Phillip Island.
Marc Marquez should be fit for the start of the defence of his MotoGP title despite breaking his leg in a dirt-track training session on Wednesday.
World champion Marc Marquez remained dominant in the final session of the three-day pre-season MotoGP testing at the Sepang circuit in Malaysia.
MotoGP world champion Marc Marquez was fastest on the first of three days of testing at Malaysia's Sepang circuit.
Jorge Lorenzo has admitted he needs to lose weight as he prepares his bid to reclaim his MotoGP crown this year.
France's Stephane Peterhansel claimed victory on the sixth stage of the Dakar Rally on Friday but the race was marred by the deaths of a motorcyclist and two journalists.
British superbike champion Alex Lowes will not defend his title this year after switching to the World Superbike Championship.
Italian racer Doriano Romboni has died after being struck by another rider's bike at a charity event in memory of late compatriot Marco Simoncelli.
Richard Cooper has been confirmed as the first rider signing for the new TAG Racing British Superbike Championship team.
Anthony West's results for the last 18 months have been expunged because of a doping offence.
Marc Marquez's rivals have saluted the young Spaniard after he became the youngest man to win the MotoGP world title.
Marc Marquez survived a tense final race of the season in Valencia en route to clinching the MotoGP world title for the first time.
Marc Marquez took pole at the final Grand Prix of the season in Valencia, 0.34 seconds quicker than title rival Jorge Lorenzo, who will start second.
Forward Racing have announced Aleix Espargaro and Colin Edwards as their rider line-up for the 2014 MotoGP World Championship.
Marc Marquez leads the way after the opening day of practice ahead of Sunday's season-ending Valencia MotoGP.
Marc Marquez hopes he is fit enough to see off Jorge Lorenzo in their final day battle for the MotoGP World Championship.
Sylvain Guintoli has been ruled out of the World Superbike winter testing season after having surgery on his collarbone.