So, Manchester City keep their Treble dream alive by marching into the FA Cup final thanks to Riyad Mahrez's hat-trick.

City will be back at Wembley for the showpiece on 3 June, but will they be playing Brighton & Hove Albion or Manchester United in six weeks?

We'll find that out tomorrow. Until then...

Leon Osman
Former Everton midfielder on BBC Radio 5 Live

The depth Manchester City have is real quality. You have to give credit to Pep, he gives everybody enough game time that when they are asked to come into the squad they are ready and able.

They've not sat on the substitutes bench being unused for six weeks and suddenly being expected to be at the same quality as the rest. He uses them very well and Riyad Mahrez has got real quality, a real eye for the goal. He fancies himself, wants to be on the scoresheet. He wants to win for the team.

Andy: Unlucky Blades, no shame there. Now go get those three points and return to the Premier League.

Phil McNulty
BBC Sport chief football writer at Wembley

Image source, Getty Images

The debate about whether FA Cup semi-finals should be played at Wembley opened up again as vast swathes of empty seats were in evidence for what is traditionally regarded as one of the great showpiece occasions.

There is no question the atmosphere was subdued at times as this one-sided game played out but the counter argument might be made by Sheffield United's fans who clearly relished the Wembley experience and gave their team magnificent support.

In reality, they will have known it would have been a huge shock had they toppled Manchester City's selection of superstars but come the final whistle they were already turning their attention to what is undoubtedly their top priority this season - promotion to the Premier League.

The Blades are in a superb position to go up automatically as they stand seven points clear of Luton Town in third place with a game in hand. Going up, along with reaching an FA Cup semi-final, would constitute a truly outstanding season for manager Paul Heckingbottom and his team.

Winter Wonderland: 69,000...could've fitted them into Old Trafford with room to spare and saved all that travel cost, emissions etc.

Manchester City

Image source, Getty Images

Manchester City manager Pep Guardiola, speaking to ITV: "Excellent performance, we cannot forget three days ago we were in Munich.

"It took a lot to be here, to try it. We suffered in some actions with long balls. In the end with the quality from Riyad [Mahrez] and the rest of the guys we did it.

"The quality of Riyad we have seen for many years in this country, also with Leicester. [He is a] huge mentality competitor. Huge ambition to score goals. Scoring at the end of the first half was so important.

"The question is not to be in this stage of the competition, it is where we came from fighting for many years fighting for the titles. Being there every year means the mentality of the club - not just the players - is there.

"It is an honour to be in the FA Cup final on 3 June. We will be here. Today we played really good, everyone was serious."

Stephen: Why do the fat cats at the FA keep on with the semi-finals of the competition at Wembley? Surely it has to take the gloss off the final itself? Revert back to neutral league grounds and have the semi- finals played on the same day! And Sheffield United know what they're up against next season. Good luck!!

Phil McNulty
BBC Sport chief football writer at Wembley

Manchester City manager Pep Guardiola could have been forgiven for making widespread use of his vast resources of talent following his admission that they were "exhausted" after successfully coming through the Champions League quarter-final with Bayern Munich, and with that clash with Arsenal on the horizon.

Not a bit of it.

Guardiola made adjustments, such as playing Stefan Ortega ahead of Ederson in goal, but the sight of Erling Haaland up front made his and City's intentions clear.

They want all three big prizes - the Champions League, the Premier League and the FA Cup - and are currently on one of those relentless rolls that gives them a huge chance of matching Manchester United's feat in 1999.

Leon Osman
Former Everton midfielder on BBC Radio 5 Live

Image source, Getty Images

Riyad Mahrez was the difference. A very stubborn defensive performance from Sheffield United for 45 mins. If they'd have scored very early in the game it would've been different. Man City just keep on going, they keep trying to create chances and it was Mahrez who was the difference.

Roy Keane, who won the Treble with Manchester United in 1998-99, is asked on ITV1 whether it would irritate him if Manchester City win the Treble: "Yeah! No, I don't begrudge teams for their success. I know how hard it is to win trophies so if City go on to win it then honestly well done. We know how tough it is, but they have got a few hurdles to get over particularly in terms of Real Madrid."

Leon Osman
Former Everton midfielder on BBC Radio 5 Live

Sheffield United had to hope that City had one of their off days that they did in the past at this stage or Sheffield United had a day where everything went well. They needed to take that opportunity at the start of the game that was well-saved by Ortega. Those Sheffield United fans won't go home too disappointed. They'll be thankful to their players for the wonderful season they've had.

Manchester City

Manchester City have become the first team to reach the FA Cup final without conceding a single goal since Everton in the 1965-66 season, who went on to beat Sheffield United’s city rivals Sheffield Wednesday in that year’s final (3-2).

Leon Osman
Former Everton midfielder on BBC Radio 5 Live

We're talking about a team that's into the final stages of the Champions League. The whole of Europe is wowed by what Manchester City are currently doing and how they're playing. Not many teams are able to keep up, only a few in the Premier League and one or two in the pinnacle of European football.

Manchester City

Hat-trick hero Riyad Mahrez, speaking to ITV1: "It feels very good [to score a hat-trick]. The most important thing is that two or three seasons in a row we've come here in the semi-finals and lost. Today, we wanted to make sure we got to the final. I think I had a good game.

"I don't know really which goal was the best. It's a good team achievement and we took the game seriously.

"It means a lot to be in final. We really want to work hard in every competition going. We're in the final of the FA Cup which is amazing. Now we have to concentrate on the league and the next game against Arsenal.

"We have a very good squad and a very good team. We have to keep going."

Leon Osman
Former Everton midfielder on BBC Radio 5 Live

Manchester City have made another step towards that Treble. It's on, they're marching along really well, they're full of confidence. They're really winning games at a canter at times. Bring on the big ones to come.

Leon Osman
Former Everton midfielder on BBC Radio 5 Live

The Sheffield United fans will be very pleased with their afternoon at Wembley. It's back to trying to secure promotion to the Premier League and they'll look back on this as a wonderful season if they do.

No big celebrations from Manchester City. Pep Guardiola is on the pitch showing his appreciation to the travelling fans. It's straight on to the next game - and what a match. Arsenal at home in the title race next Wednesday.

Image source, Getty Images

Manchester City's Treble dream is still alive.

Image source, Reuters

Nice work by Cole Palmer who crafts an opening but Phil Foden, who is sliding into the six yard box, cannot connect.

A chance for a fourth goal but Julian Alvarez drags it wide. We're going to have a minimum of three additional minutes.