So what do you do when someone achieves something great or retires? 

Publish loads of embarrassing pictures of them of course... 

Image source, St Paul's Cathedral School

Image source, Getty Images

Former England bowler Matthew Hoggard has been speaking to BBC Radio 5 live after Alastair Cook's resignation as Test captain.

“It’s a hard decision I’m sure for Alastair Cook.

“He will be remembered as the most successful captain, and not only as a great leader but also as a genuinely nice bloke. Everybody who has played with him and under him won’t have a bad word against him.

“We’ve seen Alastair Cook evolve as a captain. In the beginning there were questions marks over how he placed his field and how he went about his business but we’ve seen him evolve into a better captain. He will have regrets but everybody does.

“Whatever Alastair Cook decided would have been the right decision. He has the backing of everyone who played under him and going forward he would have had the backing of the team."

Hugo Walford: Root's too frenetic plus doesn't need the added responsibility after just becoming a dad - I think Stuart Broad. 

Stephen: Cook has been a tower of strength for England. Root is a future captain but I worry he'd be overwhelmed.

Anon via 81111: Moeen Ali should replace Cook. Only one of a few that have been in the side long enough that's not just a bowler and you wouldn't want a negative affect on Root or Bairstow's form. 

The Daily Telegraph's reporter is pretty sure who is going to replace Cook as England captain...

Kashif Akhtar: Sorry to see Cook go, let's not forget what he has achieved during what is the best probably England team/era.

Joe Green: A big decision but the right one. Sad for Cook to go but it's time for change. I'd say Root for Captain now.

Moon: Cook has led England with real class, kept scoring runs throughout that time, sad to see him step down.

Keep your thoughts coming into #bbcsportsday 

So, Alastair Cook has stepped down as Test captain.

Thoughts cricket fans? 

About time? Overdue? Or will you miss him?

Who should replace him? The bookies favourite is Joe Root but do you think someone else should step up? 

Use #bbcsportsday,  or text to 81111.

Image source, Getty Images

“It’s been a huge honour to be England captain and to lead the Test team over the past five years.

“Stepping down has been an incredibly hard decision but I know this is the correct decision for me and at the right time for the team. 

“I’ve had time to reflect after the India series and this weekend I spoke to Colin Graves, the Chairman, to explain and offer my resignation.

“It’s a sad day personally in many ways but I want to thank everyone I’ve captained, all the coaches and support staff and, of course, the England supporters and the Barmy Army who follow us home and away and have given us unwavering support. 

“Playing for England really is a privilege and I hope to carry on as a Test player, making a full contribution and helping the next England captain and the team however I can.”

Image source, Getty Images

A statement on the ECB website reads:

"After 59 Test matches in charge of the England team, including Ashes victories and series wins in India and South Africa Alastair Cook has decided to step down from the role. 

"Cook discussed his decision with the Chairman of the England & Wales Cricket Board, Colin Graves, on Sunday evening and has confirmed his continuing commitment to playing Test cricket to Director of England Cricket, Andrew Strauss, and the selectors."

Image source, Getty Images

More to follow.

Behind the Patriots' stunning win was one of the greatest NFL stars of all time - quarterback Tom Brady.

Why is he so good?

• Brady became the first man to win five Super Bowl rings - and just the second player in history along with Charles Haley
• He broke his own Super Bowl record with 43 pass completions
• Brady also became the first player ever to win four Super Bowl MVPs on what was a record seventh appearance in the game
• Brady's 466 passing yards surpassed the previous record of 414 set by Kurt Warner in Super Bowl XXXIV

Image source, Reuters

Will this go down in history as one of the greatest Super Bowl catches?

A diving, juggling 23-yard circus catch by New England Patriots' Julian Edelman amid two defenders as they all tumbled to the ground.

It sparked the move that ended with the Patriots levelling the scores against the Falcons in the last minute of regulation time, and set them up to complete victory in overtime.

Still buzzing from last night’s historic Super Bowl? 

Jacksonville Jaguars defensive lineman Michael Bennett is ready to answer your questions at 09:15 GMT on our BBC Sport Facebook page., external

Lifelong New England Patriots fan Mark Wahlberg had to leave the Superbowl early after his son started feeling ill - he missed the end of the game...

Ouch.

Image source, Getty Images

Anyone else switch off early? 

David Saunders: Went to bed before Pats had a point on the board, as I had a flight to catch later. Can't come from 21 down I thought...

D Jervis: Ah yes. Atlanta have this wrapped up. *turns off tv*

John Stevens:, external Went to bed in the third quarter because the scorline, woke up and realised I missed the greatest comeback of all time! So sad. 

Thought Donald Trump had tweeted us for a second......

Can you recall an occasion you had to leave a sporting event early and missed what turned out to be the game/ event/ moment of the century?  

Use #bbcsportsday or text to 81111. 

Chelsea star Eden Hazard has said the more he gets kicked, the better he plays, say reports in The Daily Star. 

Cue his team-mates taking it in turns in training... 

“When I get a lot of kicks, I feel I’m really in the game. When people don’t touch me, that means I’m not doing well, I’m no good.

Image source, Getty Images

Darren Bent, Derby County striker, who turns 33.

Laurent Cabannes, former France flanker, who turns 53.

Golfer Ricky Barnes, runner-up at the 2009 US Open, is 36.

Image source, Getty Images