It's the little things which Everton will be unable to remove from the matchday preparation - one of which is Sean Dyche's programme notes.

Dyche referred to tonight's game as "an opportunity to attack the challenge," it will be Leighton Baines and Seamus Coleman who will lead that "attack" from the touchline.

In the programme Dyche added: "As we turn our attentions away from the Premier League to the FA Cup, there is an opportunity to attack the challenge in front of us and look to start building some positive momentum after a couple of disappointing results."

Image source, Getty Images

The debate and reaction to Sean Dyche's sacking continues.

Here's your reminder there are three FA Cup times tonight, including Everton's.

This is what is coming up:

• Sheffield United v Cardiff City (19:00 GMT)
• Everton v Peterborough (19:45 GMT)
• Fulham v Watford (19:45 GMT)

Shamoon Hafez
BBC Sport football news reporter at Goodison Park

Image source, PA Media

Sean Dyche was at the Everton training ground earlier today, where he said his goodbyes.

Club sources say he did not know about the sacking while he took the news conference on Tuesday.

Giulia Bould
BBC Radio 5 Live Reporter at Goodison Park

Its been a chaotic hour at Goodison Park. I don't think anyone expected this as Sean Dyche held his press conference on Tuesday.

I asked Sean Dyche on Tuesday, 'Do you think you have got the backing of the fans?'

And, he kind of brushed it off and even he knew people had lost patience.

Sheffield United have made seven changes to their side for tonight's FA Cup clash. OnlyAlfie Gilchrist, Harrison Burrows, Andre Brooks and Ryan One keep their starting shirt.

Jamal Baptiste and Billy Blacker will also make their full senior debut.

Sheffield United XI: Davies, Gilchrist, McCallum, Brewster, Burrows, Baptiste, Norrington-Davies, Marsh, Brooks, One, Blacker.

Subs: Faxon, Hamer, O'Hare, Ahmedhodzic, Robinson, Boyes, Hampson, Aston, Colechin.

Cardiff have also made seven changes to their squad from the team which faced Middlesbrough in a 1-1 draw.

The Bluebirds captain Joe Ralls will make his 400th appearance for the club.

Cardiff XI: Horvath, Kpakio, Fish, Daland, Bagan, Ng, Ralls, Tanner, Colwill, Ashford, Etete.

Subs: Turner, T. Davies, Giles, Rinomhota, Siopis, Robertson, Jefferies, Willock, Pearce.

Remember, we've still got FA Cup third round action coming your way tonight with Sheffield United hosting Cardiff at 19:00 GMT.

Team news coming your way next.

Everton's FA Cup opponents for tonight, Peterborough, surely must be encouraged by the timing of this announcement.

Have the Everton players had any training under Seamus Coleman and Leighton Baines? Quite possibly not.

It also remains to be seen what the atmosphere inside Goodison Park will be like after Sean Dyche was relieved of his duties just hours before kick-off.

One man who is certainly ruled out of possibly taking over at Everton is Graham Potter after he was announced as West Ham manager this morning.

Did the Hammers act fast in securing their choice?

Some Everton fans may not have heard the news about Sean Dyche's sacking until they reached the concourse at Goodison Park.

What a place to find out!

Image source, Getty Images

Image source, Getty Images

The Friedkin Group isn't shy about bringing some nostalgia to the fans, just as they have done with Roma.

Daniele De Rossi played for Roma for 18 years and was then appointed manager in January 2024 before being dismissed in September. In then came the much-loved Claudio Ranieri.

Could they do the same with Everton and opt for a return for David Moyes?

June 2024: 777's proposed takeover collapses after it fails to meet deadline. The Friedkin Group agrees deal in principle but calls off talks the following month.

July 2024: Everton sell midfielder Amadou Onana to Aston Villa for £50m, with the Toffees the only Premier League side since the start of the 2022-23 season with a positive net spend of £80m.

September 2024: Friedkin Group resumes talks with Everton owner Farhad Moshiri.

December 2024: Friedkin Group completes its takeover in deal worth more than £400m.

January 2025: Dyche sacked with Everton 16th in Premier League. The announcement comes less than four hours before an FA Cup game against Peterborough.

Shamoon Hafez
BBC Sport football news reporter at Goodison Park

Image source, Getty Images

A source close to the Friedkin Group told BBC Sport that the timing of sacking hours before a game was not ideal but the group wanted to stand firm on their decision.

There have been a couple of days of talks this week between ownership and Sean Dyche with both sides feeling they had reached the end of the road. The decision to make an immediate change was then made.

Difficult negotiations have taken place over an exit package for Dyche and his staff and a settlement was reached.

They are hopeful of making a quick appointment, before the next game v Aston Villa next Wednesday.

30 Jan 2023: Sean Dyche appointed Everton manager with club 19th in the Premier League and two points from safety.

28 May 2023: Everton beat Bournemouth to avoid relegation on final day of season.

September 2023: Miami-based investment firm 777 Partners agrees takeover deal.

November 2023: Everton deducted 10 points, reduced to six on appeal, for breaching Premier League financial rules.

March 2024: Everton report financial deficit of £89.1m - the sixth successive year of losses.

April 2024: Toffees deducted two further points for second breach of financial rules.

May 2024: Despite the points deductions, Dyche steers Everton to a 15th-place finish, 14 points above the relegation zone.

Of course, when your manager is sacked, the first thing you do is think about who could be next in the door.

Former Everton midfielder Lee Carsley may not be a bad shout. The 50-year-old is the current England U21 boss and has recently had a stint in charge of the England senior team.

Would you take him, Everton fans?

Image source, Getty Images

Well, we're going to find out in around two and a half hours! Everton host Peterborough in the FA Cup third round at Goodison Park live on BBC iPlayer and the BBC Sport website.

We'll also have a live text running to take you through the three FA Cup matches tonight so stay tuned!