Today's #QSTeaser from @QofS_Official was: Before Stanislas Wawrinka, name the three men to win their first or only Grand Slam Singles title at the Australian Open since 1998?

Answers to today's #QSTeaser from @QofS_Official are: Novak Djokovic, Thomas Johansson and Petr Korda

Image source, AFP

Triple Olympic ski jumping champion Thomas Morgenstern will take part in the Sochi Winter Games despite crashing heavily earlier this month, says the Austrian Olympic Committee.

Morgenstern, 27, was included in a 130-strong delegation, despite suffering an injury at Bad on January 10 when he lost his balance in the air, turned over and landed on his back and head.

He won Olympic titles in the individual and team large hill events in Turin in 2006 and a team large hill gold in Vancouver in 2010, and has begun light training following the incident.

Ciaran:, external Would love Liverpool to try and bring Carragher back, similar to what United did with Scholes. They badly need a defensive leader.

Sagar:, external Lack of transfer activity is definitely going to cost Liverpool something. Be it the Champions League or league.

Player movement at Liverpool continues to look less and less likely, but which other clubs do you expect to do business in the closing days of the transfer window? Tweet us on #bbcsportsday or comment on the BBC Sport facebook page., external

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British heavyweight Dereck Chisora will fight American Kevin Johnson at the Copper Box in the Olympic Park on 15 February.

The contest was announced at a press conference today with Tyson Fury among the boxers appearing on the undercard in London, against Gonzalo Omar Basile of Argentina.

If both British fighters win their bouts, they could meet in the ring later this year.

Athletes at the Winter Olympics in Sochi will have the freedom to make statements against Russia's anti-gay laws - but should not mount protests on the podium, says IOC president Thomas Bach.

The IOC's rules state "no kind of demonstration or political, religious or racial propaganda is permitted", but Bach said athletes were free to make their feelings known in press conferences.

"It is very clear that the Games shouldn't be used as a stage for political demonstrations," says Bach. "But on the other hand the athletes enjoy the freedom of speech so if in a press conference they want to make a political statement they are absolutely free to do so."

Opta Joe:, external "660 - Only Sir Alex Ferguson (810) has managed more Premier League matches than Arsene Wenger (660). Longevity."

The Arsenal manager will extend his contract with the Gunners, says chief executive Ivan Gazidis. The Frenchman is in the final 12 months of his current deal and is the longest-serving manager in the Premier League.

BBC Sport's Gary Lineker:, external "Great to see Leighton Baines has signed a new deal at Everton. My former club means business. Happy days."

Do Everton need more recruits to push for the Premier League top four? Tweet us on #bbcsportsday with your views.

Sunderland release a statement in response to Paolo Di Canio's comments on the club's players.

The club statement reads: "Sunderland AFC would like to express its' disappointment in relation to the disparaging comments made recently by Paolo Di Canio, regarding the club and its players.

"The club is immensely proud of its players for the dignified and restrained manner in which they have conducted themselves publicly since Mr Di Canio's departure and it is particularly disappointing to read such comments when there are legal obligations in place to ensure such behaviour does not occur. The club is now considering its position with its legal representatives."

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Cardiff City manager Ole Gunnar Solskjaer returns to the club where he flourished as a player on Tuesday night. The Bluebirds travel to Manchester United bottom of the Premier League.

"We're going to go out there and give it our best shot," says Solskjaer.

"We'll play with lots of energy and passion and enjoy the occasion. We hope to take our form in the FA Cup into the league now.

"Our performances have been good, we want three points."

Solskjaer's honours as a United player:

Premier League: 1996-97, 1998-99, 1999-2000, 2000-01, 2002-03, 2006-07

FA Cup: 1998-99, 2003-04

FA Community Shield: 1996, 1997, 2003

UEFA Champions League : 1998-99

Pirelli will take special winter tyres to the first pre-season Formula One test to ensure teams get as much track time as possible if the weather turns cold.

Testing, which starts in Jerez on Tuesday with 10 of the 11 teams, has been brought forward from February because of the challenges posed by a new turbocharged V6 engine and accompanying energy recovery systems. Jerez is the only test in Europe, with the other two scheduled for the heat of Bahrain, before the season starts in Australia in March and teams can ill afford weather delays.

"Last year the teams lost some pre-season running due to excessively cold conditions in Spain: we even saw some ice on the track at one point," said Pirelli motorsport director Paul Hembery.

London Wasps hooker Neil Cochrane joins hometown club Edinburgh for next season.

The 30-year-old played for Watsonians and Boroughmuir before spending eight years in the English Championship with Bedford, Doncaster and Rotherham.

"It's great to fulfil a lifelong ambition to play for the team where I was born and grew up," says Cochrane.

Victor Wanyama could return from a seven-week injury lay-off in Southampton's clash with Arsenal on Tuesday night, but Rickie Lambert is a doubt.

Kenyan midfielder Wanyama suffered a hairline fracture to his leg in defeat to Aston Villa on 4 December, but is line for a return against the Gunners. Lambert will be assessed, while Artur Boruc should return in goal. Dejan Lovren and Gaston Ramirez (both ankle) are definitely absent.

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Newcastle United manager Alan Pardew casts doubt over the future of Yohan Cabaye by admitting he is "not confident" the Frenchman will be at the club when the transfer window closes on Friday. The Magpies have already rejected a £14m bid from Paris St-Germain for Cabaye's signature.

Asked in a news conference if he was confident of keeping the 28-year-old at the club, Pardew says: "No, I'm not confident.

"I don't think any team not in a Champions League position or fighting for a Champions League spot could be."

Liverpool manager Brendan Rodgers will assess the fitness of midfielder Joe Allen in the build-up to tomorrow night's Merseyside derby at Anfield. The midfielder overcame a groin problem to feature against Aston Villa in mid-January but has struggled for fitness since. Meanwhile, defender Mamadou Sakho is still three weeks away from full fitness.

"It's just a case of assessing Joe on whether this game is going to push him too much and whether he's fully fit," Rodgers tells a news conference.

"What we don't want is another injury. Maybe if we had a raft of players, we could put him in and if he came out of the team we'd have someone else to put in.

Ireland international and British and Irish Lions squad member Tom Court signs a three-year deal with London Irish and will join for the 2014-15 season.

So for Chelsea fans still frustrated it's happened, Juan Mata's move to Manchester United becomes a visual reality as he's pictured holding the red shirt complete with his number-eight squad number. But who else now needs to bring in fresh blood? Crystal Palace fans, do you need more firepower? Liverpool supporters, will a lack of business end your top four hopes? Tweet us @bbcsportsday or comment on the BBC Sport facebook page.

Khael Malik: As sad as it may be, I think the arrival of Mata spells the end of Kagawa.

Rohidas Mali: So, whoever sold United to Mata must be a great sales guy. Mata seems to believe a 14-point deficit is manageable. Ill-informed.

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England head coach Stuart Lancaster is excited by the possibility of selecting three uncapped players for their Six Nations opener against France in Paris. Uncapped trio Jack Nowell, Anthony Watson and Luther Burrell are all in contention to start at the Stade de France.

Lancaster tells a news conference: "I've never shied away from giving people without much experience opportunities. At some point you have to do it.

"This time two years ago I selected seven players with no caps for Scotland away. There is a balance to strike, but I've always been reasonably confident to pick inexperienced players if I feel they're ready."

West Brom's Nicolas Anelka is determined to keep playing in England despite the controversy surrounding his FA hearing after he performed a 'quenelle' goal celebration. The Baggies have kept quiet on the issue but as speculation intensifies as to what the Frenchman will do if found guilty, his mind is clear.

"Thanks to Lazio and all the others clubs who wanted to sign me these last few days," says Anelka on Twitter. "See you this summer if I decide to continue, but the question is why should I leave my club and England?

"I'm happy here and I did nothing wrong, so now it's time to stay focused on my football with my club. I will try my best on the pitch like I always do."

Shane Long is set to make his Hull debut when the Tigers travel to Crystal Palace on Tuesday. The £6.5m signing from West Brom is fully fit after an ankle knock. James Chester (hamstring) and Sone Aluko (Achilles) remain out.

Juan Mata's first press conference drew much of the focus at Manchester United this afternoon but the clubs' supporters may be as pleased with the news that both Wayne Rooney and Robin Van Persie trained this morning. Manager David Moyes confirms the pair could feature against Cardiff at Old Trafford on Tuesday night.