Lucas Perez only needed 47 minutes to complete his first hat trick in an Arsenal shirt Tuesday.
The Spanish forward put the Premier League side up 3-0, when Alexis Sanchez deflected a pass from Kieran Gibbs right into Perez's path, for the one-time finish beyond Basel 'keeper Tomas Vaclik - who should've done better after getting his hand on the shot.
Seven minutes later, Alex Iwobi thumped in Arsenal's fourth goal on the day.