Arsenal manager Mikel Arteta is under fresh pressure after Pierre-Emerick Aubameyang scored a hat-trick in Barcelona's 4-1 win against Valencia on Sunday afternoon.
Arteta allowed Aubameyang to join the Spanish giants on a free transfer earlier this month. The Gabon international hadn't played for the Gunners since December.
Many Arsenal fans have questioned the manager's decision to allow Aubameyang - who's scored 291 club goals during his career - to leave the Emirates without a replacement.
