After a goalless first half which saw Newcastle miss several opportunities to score, the hosts finally took the lead through Dan Burn. The left-back burst forward to net his first goal for the club in front of the Gallowgate End.
Joelinton then doubled United’s lead in the 72nd minute with a neat finish from Miguel Almiron’s well-weighted pass.
It’s the first time Newcastle have reached the semi-final of the League Cup since 1976.
Here are the Newcastle player ratings from the match...

9. Miguel Almiron - 7
Found space well and attacked early on to pose a threat. Did well to set-up Joelinton for Newcastle’s second goal. | Getty Images

10. Joelinton - 9
Formed a good partnership with Willock down the left once again. Hit the post early in the second half but scored his third of the season (second against Leicester) with a fine left-footed finish. Grafted well to dominate from the left. | Getty Images

11. Callum Wilson - 7
Linked play up well but saw few chances fall his way. Put in a good shift. | Getty Images

12. Alexander Isak - n/a
On for Wilson 77: Made a couple of good runs to keep Leicester on their toes in the closing stages. Photo: Laurence Griffiths