London: Christian Benteke scored twice and Antonio Luna scored the third as Aston Villa came from behind to stun Arsenal 3-1 at Emirates Stadium on the opening day of English Premier League.
Olivier Giroud opened the account for Arsenal, but Benteke headed an equaliser after Wojciech Szczesny saved his penalty.
Benteke controversially put Villa ahead from the spot after a foul by Laurent Koscielny, who was later shown a second yellow card for a mistimed challenge.
New signing Luna raced clear to seal Arsenal's woe with a low strike.
The full-time whistle was greeted with resounding boos from the home crowd, although the arena was near-empty by that point.
Arsenal's only summer signing to date is the free transfer of 20-year-old French striker Yaya Sanogo and supporters were repeatedly chanting for their club to spend some money.