The summer transfer window throws up incredible rumours every season, with some crazy deals mooted which sends fans tongue's wagging - and this summer is no different.
The crazy rumour doing the rounds at the moment is Liverpool being interested in the signature of PSG star Kylian Mbappe, who is reportedly considering his future in France.
Now, this transfer is very unlikely for a number of reasons.
One, any deal to sign Mbappe would likely be the biggest transfer deal in the history of football and would eclipse Neymar's €222 million move from Barcelona to PSG in August 2017 - which Liverpool aren't going to do.
Secondly, the wages that Mbappe would command would be far in excess of what Liverpool would be prepared to offer.
Thirdly, and the most important one, PSG don't want to sell and Liverpool don't want to buy.
But, you can't help but imagine what Liverpool could achieve with such a world-class player added to their ranks and how he would gel with Salah, Firmino and Mane.
So, we used Football Manager 2019 to have a bit of fun and see what would happen if Liverpool signed Mbappe this summer.
Kylian Mbappe - Liverpool

Current overall ability: 173/200
Potential overall ability: 196/200
Best attributes (out of 20): Pace (20), acceleration (19), Flair (18), technique (18), composure (17), off the ball (17), dribbling (17), finishing (16), first touch (16), agility (16).

To see how Liverpool would get on with Kylian Mbappe at their disposal, we added in a £250 million transfer, of which £150 million were in instalments over the next three seasons, using the Football Manager 2019 editor. We also added in all the accurate promotions, relegations, transfers and manager changes using an updated editor file.

We also put Mbappe on a wage of £400,000 per week, which is double that of Mohamed Salah's wage on FM.
But how much difference will he make to Liverpool's performance in the 2019/20 season?
Here's what happened....
Liverpool 2019/20 transfers
Transfers in: £268.5 million
Kylian Mbappe (PSG) - £250 million (£100m initial fee with £150 million in installments over three seasons)
Raphael Guerriero (Borussia Dortmund) - £18.5 million rising to £20.5 million

Transfers out: £0
So how did this effect their season?
Liverpool Premier League goals scored

With Mbappe in the team, Liverpool scored more goals than any other team in the Premier League, four more than Man City and Arsenal.
Liverpool's top scorers in 2019/20

Mbappe was a regular goalscorer throughout the season, but picked up niggling injuries and didn't feature as much as top scorer Salah, who scored 27 goals.
Kylian Mbappe's 2019/20 season for Liverpool

The Frenchman scored 10 goals and registered seven assists in 27 league starts, scoring 18 in all competitions with 38 starts.
His average rating of 7.53 across all competitions is outstanding, with only Salah having a higher rating in the Liverpool squad.
Liverpool's best XI in 2019/20

This is was Jurgen Klopp's most used eleven during the season, with Mbappe forcing Sadio Mane out of the team on the left hand side.
Interestingly, Trent Alexander-Arnold progressed into a central midfield position alongside Jordan Henderson and Fabinho, as Nathaniel Clyne played right back.
We've seen all the stats, but what about the results?
Liverpool's 2018/19 league position: 2nd
Liverpool's 2019/20 league position: 1st

Mbappe's Liverpool won the Premier League on goal difference ahead of Man City, amassing 89 points to lift the league title. What an impact.
Champions League performance in 2019/20
In the Champions League, Liverpool had another astonishing campaign, as they lifted the trophy in successive seasons.

Mbappe scored the opening goal in the final against Napoli, as they ran out 2-1 winners.

Incredibly, Liverpool actually won the Quintuple with Mbappe in 2019/20, winning the Champions League, Premier League, Club World Cup, European Super Cup and Community Shield.

We're not 100% that some of those trophies count but let's run with it!
According to Football Manager 2019, Liverpool would dominate European football if they signed Kylian Mbappe, winning nearly every competition in sight.
Oh well, we can dream hey.....
Get all the latest FIFA, Football Manager and general gaming news here.