Water is wet, the sky is blue, and Chelsea are incredibly busy in the summer transfer window.

Like they do every year, the Blues are making the most of silly season, already welcoming in Premier League-proven talents like Liam Delap and Joao Pedro.

Moreover, they have also reportedly agreed a deal worth around £55m to sign the incredibly exciting Jamie Gittens from Borussia Dortmund.

However, it's not all about the incomings, as the West Londoners have already made a few sales and are looking to make a few more, although one potential exit could end up being something of a Mohamed Salah repeat.

Chelsea's summer sales

While most of the attention this summer has been on the club's incomings, and rightly so, Chelsea have already made a few sales.

The biggest thus far has been Bashir Humphreys' move to Burnley, where he spent last season on loan, for a fee supposedly around £10m.

The full-back isn't the only Blues player who was on loan last season to leave this summer, though, as Kepa Arizabalaga made the incredibly familiar move to Arsenal for around £5m earlier this month.

Interestingly, based on reports, the Spaniard might not even be the only Blues player to move to the Emirates this summer.

According to a recent report from transfers expert Fabrizio Romano, Noni Madueke could follow Kepa to the red side of North London in the coming weeks or months.

In fact, the Italian journalist claims that the Gunners are in talks with the player's representatives, and that he'd be "open" to a move.

In terms of the money involved, reports from earlier this month claim that the Englishman could end up costing £55m.

While there are certainly some who would see this as an excellent sale for Chelsea, there are also ways in which it bears a resemblance to Salah's departure all those years ago.

Why Madueke's move could be Salah 2.0

Okay, so before the pitchforks and torches come out, we are not in any way trying to argue that Madueke is as good a player as Salah is today, as that would be patently absurd.

However, there are some similarities between them and this potential transfer to that of the Liverpool star.

The first is that it could be another example of Chelsea selling a young and exciting right-winger years before they hit their peak.

While he was not indispensable last season, the former PSV Eindhoven star was a useful player to have in the squad and someone who showed glimpses of brilliance.

For example, the "unbelievable" forward, as dubbed by former manager Mauricio Pochettino, racked up a tally of seven goals and four assists in just 32 Premier League appearances, and in Europe, he was even better, scoring three goals and providing one assist in five games.

Moreover, he possesses some genuinely world-class skills, as, according to FBref, he ranked in the top 1% of attacking midfielders and wingers in Europe's top five leagues for progressive carries and carries into the penalty area per 90 minutes.

In other words, there were almost no players better at getting the ball up the pitch and into seriously dangerous areas than the Englishman.

Don't just take our word for the potential of the winger though, as coach Saul Isaksson-Hurst has argued that he's "further along on his journey than Salah was at the same age" and that "if he continues to work hard, then he could and should be recognised as one of the world's best down the line."

Additionally, if the Reading-born ace does get to the very top of the game, then he could end up being as much of a thorn in the Pensioners' side as the Egyptian has been, only this time for an even bigger rival.

Ultimately, while he's nowhere near Salah today, Madueke has the ability to be something special, and if Chelsea let him go to a rival now, they could end up regretting it in the same way they regret losing the Liverpool star all those years ago.