We look at what the four teams left standing need to do to make it to Super Bowl 60 and the key factors in Sunday's Conference Championship games.
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Prison officer jailed for having sex with inmate
Isabelle Dale had relationships with two prisoners at HMP Coldingley in Surrey, a judge says.
UK defends Chagos deal after Trump calls it 'act of great stupidity'
The US president says it is "another in a very long line of National Security reasons why Greenland has to be acquired".
Littler beats Van Gerwen to win Saudi Masters
Luke Littler wins the inaugural Saudi Arabia Darts Masters with an emphatic 8-5 victory over Michael van Gerwen in Riyadh.
Lyse Doucet: Trump is shaking the world order more than any president since WW2
Trump's demands over Greenland are a rude awakening in a moment fraught with risk.
Prince Harry 'clutching at straws' with claim against Mail publisher, court told
The publisher says it has presented 'a pattern of legitimate sourcing' in its defence against alleged unlawful information gathering.
Lucy Letby will not face further criminal charges
Former nurse Lucy Letby is serving 15 whole-life terms for murder and attempted murder.
Ukraine's parliament and half of Kyiv with no heating after Russian strikes
President Zelensky says Russia has started using "far more" ballistic missiles in its attacks on Ukraine.
Europe to suspend approval of US tariffs deal
The move follows renewed tensions between the US and EU, as Donald Trump pushes to acquire Greenland.
Europe to suspend approval of US tariffs deal
The move follows renewed tensions between the US and EU, as Donald Trump pushes to acquire Greenland.
Chinese mega-embassy approved by government after debate over security risks
Critics of the project - including some Labour MPs - warn it could pose a security risk.
Shock and confusion as Spain struggles for answers after deadly train crash
Investigators remain baffled by the cause of Sunday's deadly crash in the south of the country.
Catherine and William try curling in Stirling
The Prince and Princess of Wales also met the Team GB and Paralympics GB curling teams ahead of the Winter Olympic Games.
Full messages shared between Trump and European leaders
Experts tell BBC what to read into private messages between US President Donald Trump and European leaders that have been shared publicly .
Man sentenced for putting father's body in fridge
John Garrett O'Sullivan, 56, admitted preventing the lawful burial of his father, a retired orthodontist.
What is the UK's Chagos Islands deal and why has Trump criticised it?
Trump has criticised the deal under which the UK keeps control of the joint UK-US Diego Garcia military base.
Why does Trump want Greenland and what could it mean for Nato and the EU?
The US president's repeated demands to control Greenland could threaten the Nato military alliance.
'Modelled on a jellyfish' - Osaka backs up 'spectacular' outfit with win
How Naomi Osaka's jellyfish-inspired outfit stole the show in her hard-fought Australian Open first-round win over Antonia Ruzic.
Jellyfish-inspired outfit steals show in Osaka's Australian Open win
How Naomi Osaka's jellyfish-inspired outfit stole the show in her hard-fought Australian Open first-round win over Antonia Ruzic.
Russell Brand granted bail after two further sexual offence charges
The comedian and actor was charged with one more count of rape and one of sexual assault.
Russell Brand granted bail after two further sexual offence charges
The comedian and actor was charged with one more count of rape and one of sexual assault.