Arsenal's first major signing of the summer has officially arrived.
Willian has joined on a free transfer from London rivals Chelsea on a three-year deal that's expected to see him earn £220,000-a-week.
Not bad money for a 32-year-old. Despite his advanced age, there's a lot of hype around the Brazilian's arrival.
He could be a good fit for Mikel Arteta and is an experienced head in the dressing room - one that has won a lot of silverware during his career.
But how could Arsenal lineup with Willian in their ranks next season?
In truth, there are plenty of exciting formations and personal for Arteta to pick from.
Here at GIVEMESPORT, we've decided to detail six starting XIs the Gunners could use.
We've included Dani Ceballos in a number of line ups because Arsenal will be confident of landing him on a permanent transfer following his loan.
3-4-3
Perhaps one of the most likely lineups Arteta will choose. Here, Willian compliments Pierre-Emerick Aubameyang and the front three is completed with Nicolas Pepe.
The three-man defence, which is flanked by wing-backs Bukayo Saka and Cedric Soares is brave, but don't bet against the Gunners pulling it off.
4-3-3
This will be another strong choice. In this formation, Willian keeps his place at RW but this time, Aubameyang is supported by Saka on the left.
A three-man midfield of Granit Xhaka, Dani Ceballos and Lucas Torreira is exciting and Arsenal will want to ensure the trio are present for the 2020/21 campaign.
3-4-3 (alternate)
Arsenal's second potential 3-4-3 formation would see the same front three as above, but this time, they are supported by just two centre-midfielders.
This is potentially Arteta's strongest back-line, with William Saliba, Rob Holding and David Luiz flanked by wingbacks Kieran Tierney and Hector Bellerin.
We like this one.
4-3-1-2
We've got to admit, this is a little bit out there. But we wanted to get Alexandre Lacazette involved!
This time, Willian switches to the number 10 role behind Lacazette and Aubameyang - the Brazilian is a versatile player - so wouldn't have any problem slotting in.
The strong three-man midfield returns and behind them, the defence is a more traditional back four.
4-3-3 (alternate)
The alternate 4-3-3 formation would see Willian return to his RW position and for the first time, Gabriel Martinelli earns his place on the left.
Even midfielder Mesut Ozil and goalkeeper Emiliano Martinez sneak their way into a lineup that blends youth and experience.
Perhaps one for the cup, Mikel?
3-4-3 (alternate)
Our final formation is one that will least likely be used - simply because we've benched Aubameyang and given Martinelli a start through the middle. Bold.
We've made some interesting picks further back, too. Sead Kolasinac, Pablo Mari and Soares all feature, while Martinez again offers an alternative to Bernd Leno in goal.
How do you like the look of these six lineups, Arsenal fans? It certainly seems like Arteta will have plenty of choices to make next season.
Whether Willian plays on the right, or in a role just behind the attackers, he's definitely going to give the Gunners a new look. Roll on the next campaign!