If you missed Arsenal’s trip to Basel in the Champions League on Tuesday night, the highlights are now available.
Perez, making his first start in Europe’s club competition, struck twice from close range inside the opening 16 minutes.
The Spaniard then netted again two minutes after the break to become only the sixth Arsenal player to score a hat-tick in the competition.
Alex Iwobi made it 4-0 after 53 minutes and it could have been even better for Arsenal as Alexis Sanchez rattled the crossbar with a fizzing free-kick.
The St Jakob-Park crowd finally had something to warm them up on a cold night when substitute Seydou Doumbia flicked in a consolation after a skillful turn in the area.