The Gunners
presented the 28-year-old Brazilian midfielder, signed from Newcastle on a
long-term deal as their second-most expensive player ever, wearing number 39.
In the Emirates Cup against Borussia Dortmund, Arsenal led 2-1 with goals from Ethan Nwaneri and Viktor Gyökeres' penalty, but lost 3-2 before winning the shootout 5-4.
The day
mixed transfer buzz with pre-season action, as David Raya cut his holiday short
to train and key players like Martin Ødegaard got minutes under Mikel Arteta.