The Spanish midfielder worked with Unai Emery at Sevilla and is viewed in very high regard by the Gunners boss.
Barca were reportedly reluctant to let him leave for Arsenal without an 'obligation to buy' clause inserted into the deal.
However, after Suarez pushed for the transfer to go through, Emery's side now only have an 'option to buy' if he is a success at the Emirates.
The 25-year-old has signed a contract extension with Barca to preserve his market value, hence why they caved in and accepted Arsenal's demands.
Suarez enjoyed a very successful spell with Villarreal before his move to the Blaugrana back in 2016, but has struggled for game time due to the wealth of competition for places in Catalonia.
At Arsenal, he may benefit from the fact that Emery doesn't trust Mesut Ozil, Alex Iwobi is famed for inconsistency and Aaron Ramsey is set to leave the club in the summer.
So how could the Gunners lineup with Suarez in their side? Well, his versatility is a big plus and here are three potential ways he could fit into Emery's ever-changing side.
1. WIDE FORWARD IN A 3-4-3
With injuries and a lack of cohesion in defence, Emery may opt to revert back to a three-man back line.
With Granit Xhaka and Lucas Torreira in midfield, Emery will then have three positions up top available.
Pierre-Emerick Aubameyang and Alexandre Lacazette should accommodate two, with Suarez able to slot in on the right-hand side and interchange with the two star strikers.
2. CENTRAL MIDFIELD IN A 4-3-3
Emery has fielded a three-man midfield in a number of games this season, but Xhaka, Torreira and Matteo Guendouzi have lacked creativity against the smaller sides.
Suarez would be the ideal man to slot in and offer more stability that Ozil and Ramsey, as well as possessing an eye for a key-pass from deep.
With Aubameyang, Lacazette and the returning Henrikh Mkhitaryan in front of him, Arsenal certainly wouldn't lack firepower going forward.
3. THE CREATOR IN A 4-1-2-1-2
This diamond formation worked an absolute treat for the Gunners in the recent 2-0 win over Chelsea.
Ramsey played the advanced role brilliantly, but the Welshman's future means Emery will have to start planning for life without him.
With Xhaka, Torreira and Guendouzi behind the Spaniard, Suarez would have a licence to roam the pitch, looking to feed Aubameyang and Lacazette at every opportunity.News Now - Sport News