Nottingham Forest

Substitute Lewis Grabban stretched out his leg to convert Ryan Yates's cross in the 83rd minute and it was no more than Forest deserved at a vibrant City Ground.

Arsenal were lacklustre and could have few complaints against a well-organised Forest side who earned themselves a Midlands derby against Leicester City in round four.

Arteta's side, who face Liverpool in the League Cup semi-final first leg next week before a north London derby at Tottenham Hotspur, failed to muster a shot on target as they suffered a repeat of their third-round loss to Forest in 2018.

Forest stunned the Gunners in a 4-2 victory at the City Ground under the guidance of caretaker manager Gary Brazil, having parted company with Mark Warburton last month.

And Karanka, who led Boro to the Premier League in 2015-16, has agreed a two-and-a-half-year contract with the two-time European champions, taking over with Forest 14th in the Championship.