Summary

  • Ndidi and Gray score fantastic extra-time goals for Leicester

  • Foxes will travel to League One side Millwall in the fifth round

  • Watch clips of goals and key incidents on this page

  • Both sides named weakened teams (10 changes for Leicester, eight for Derby)

Live Reporting

Jonathan Jurejko

  1. 'Good response from Derby'

    Leicester 1-1 Derby

    Kevin Kilbane
    Former Everton winger on BBC Radio 5 live

    Keeper Ron-Robert Zieler was totally wrong-footed. The strike went in off Ben Chilwell. It was a decent enough effort - a good response from Derby.

    Abdoul CamaraReuters
  2. goal

    GOAL - Leicester 1-1 Derby

    Abdoul Camara

    All square. And it is a fortuitous equaliser. 

    Abdoul Camara sizes up the set-piece with a glint in his eye, giving the nod to Julien de Sart. The Belgian rolls the ball left, Camara whacks it, Ben Chilwell's right thigh gets a hefty touch, and Ron-Robert Zieler is wrongfooted.

  3. Leicester 1-0 Derby

    High boot or low head? Maybe a bit of both. But ref Mike Jones decides it was dangerous play by Marc Albrighton. Another Derby free-kick on the edge of the Foxes box. Identical position to the one about five minutes ago...

  4. Leicester 1-0 Derby

    If you, like Steve McClaren, want to see Andy King's opener again then here it is...

  5. Leicester 1-0 Derby

    Apparently Steve McClaren only half caught the Leicester goal because he was just heading out of the tunnel.

  6. Leicester 1-0 Derby

    Abdou Camara whacks the set-piece goalwards, Leicester keeper Ron-Robert Zieler deciding to punch clear. Not your most comfortable save but it was effective.

  7. Leicester 1-0 Derby

    Ooof! Wrong decision here by ref Mike Jones. Leicester defender Yohan Benalouane wins the ball off Nick Blackman on the edge of his box, with a bit of man thrown in for good measure. Jones says it is a foul and Derby line up a dangerous looking free-kick...

    Yohan BenalouaneAFP/Getty Images

  8. SUBSTITUTION

    Leicester 1-0 Derby

    Steve McClaren has seen enough. Off goes midfielder Bradley Johnson. On comes striker Matej Vydra. Pretty clear why - goals.

  9. Leicester 1-0 Derby

    Claudio Ranieri's name is ringing around the King Power Stadium. The buoyant home fans proclaim their love for the man who led them to the Premier League title, the unassuming Italian shyly waving his gratitude. 

  10. 'Foxes have to build on this'

    Leicester 1-0 Derby

    Graeme Le Saux
    Former Chelsea left-back on BBC One

    It's absolutely vital that Leicester don't invite Derby back into it. They have to keep the pressure on.

    Andy KingReuters

  11. Leicester 1-0 Derby

    Leicester are buzzing now. Ahmed Musa wriggles into space down the right, his cutback just pinched off Demarai Gray's toes.

  12. Leicester 1-0 Derby

    That's raised the volume inside the King Power Stadium.

  13. 'Albrighton did brilliantly'

    Leicester 1-0 Derby

    Kevin Kilbane
    Former Everton winger on BBC Radio 5 live

    We needed a spark. It came from Demarai Gray. He checked back on his right and delivered the cross. Marc Albrighton is almost on the byeline when he heads it back. It was a simple task from Andy King.

    Andy KingPA
  14. goal

    GOAL - Leicester 1-0 Derby

    Andy King

    We never doubted it. Less than a minute on the clock and Leicester are ahead. Demarai Gray's tantalising cross is headed back across goal by a stretching Marc Albrighton and Foxes stalwart Andy King is there to nod in from close range.

    Claudio Ranieri looks delighted, Steve McClaren like he's just dropped his freshly-bought chicken burger on the floor.

  15. KICK-OFF

    Leicester 0-0 Derby

    Right then. Sit down, buckle up and get ready for this white-knuckle ride of a second half.

  16. 'Pay the winners a fortune'

    Leicester 0-0 Derby

    Alan Shearer
    Ex-England captain on BBC One

    Clubs have a desire to stay in the Premier League because of finances. One way of tempting teams to field stronger sides for the FA Cup is by paying the winner a fortune. As much as I'd like to see the winner get a Champions League place, it's not going to happen.

  17. Leicester 0-0 Derby

    There wasn't much first-half action. Here's as good as it got...

  18. Leicester 0-0 Derby

    Can Martin O'Neill be the pundit for every game everywhere? Please? The Republic of Ireland manager takes the mickey out of co-commentator Graeme le Saux for claiming he is enjoying the match - "he needs to get out more" - then rinses his former Leicester midfielder Robbie Savage over his passing ability.

    The best entertainment of the night...

  19. Leicester 0-0 Derby

    At least someone out there is happy...

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  20. 'It doesn't look like the players care'

    Leicester 0-0 Derby

    Kevin Kilbane
    Former Everton winger on BBC Radio 5 live

    The Ahmed Musa opportunity for Leicester was a big chance. Neither keeper, Ron-Robert Zieler or Jonathan Mitchell, have been tested. It's been quite poor. We were expecting a little bit more.

    As a player, I would see this as an opportunity, if I wasn't regularly playing in the team. Do the players out there care? It doesn't look like they do.