Tim Krul admits Norwich City have let themselves down since the Premier League season restarted, as he sets his sights on an FA Cup revenge mission against Manchester United.

City play their first FA Cup quarter-final since 1992 when they host United tomorrow (5.30pm) with Daniel Farke’s side searching for respite after back-to-back home league defeats behind closed doors to Southampton and Everton.

That has left City on course for an immediate return to the Championship, with goals in the second half again proving costly at Carrow Road. Only Liverpool (13) and Manchester United (10) have been leading more home matches at half-time than the Canaries (eight) so far this season - but poor second halves have seen just 15 points claimed from a possible 48.

“We are playing against quality,” explained Krul. “If you saw the quality that Everton had on the bench, they have £50million players on the pitch so it is lack of being streetwise, lack of experience. We don’t have to do it in the first 20 minutes. Some teams wait until the last 20 and teams break us down. That is the hard thing to take.

“I have seen a half-time home league table and we would have been fourth, or something ridiculous like that. It’s hard to take. We have the quality to do more than we have shown.”

While league fortunes have brought just four goals so far in 2020, the FA Cup has provided some respite, sparked by Adam Idah becoming City’s youngest ever hat-trick scorer in a 4-2 win at Preston in the third round.

Grant Hanley and Josip Drmic then earned a 2-1 win at Burnley in the fourth round and it was Drmic on target again in a 1-1 draw at Tottenham, before Krul became the hero with two saves in a 5-3 penalty shoot-out success to set up tomorrow’s tie against United - who won both league meetings this season, 3-1 at Carrow Road and 4-0 at Old Trafford.

Krul continued: “It is the first time in the quarter-finals for so many years and millions of people will be watching at home.

“We are professional enough to fight and we are getting used to this horrible atmosphere because there is no atmosphere.”

He concluded: “We owe them (United) one because obviously we went away and we got hammered there - anything can happen in the FA Cup.”