Arsène Wenger rails at 'scandalous' penalty after Watford beat Arsenal

Arsenal looked on course for victory thanks to Per Mertesacker's first Premier League goal for nearly four years but ended up leaving empty-handed after Troy Deeney equalised from the spot and Tom Cleverley struck a winning goal in stoppage time.

"I would say it was not a penalty".

However, Watford - which had scored late goals to pick up points against Swansea City and West Brom in its last two outings - once again demonstrated its new-found resiliency under manager Silva. It was not a penalty, it was a creation of the referee.

Deeney's impact off the bench made a real difference to the game, with Watford switching from three at the back to a 4-4-2 system following the introduction of their club captain.

"It's important, I didn't see a dive or a simulation".

The Hornets suffered a heavy 6-0 defeat at the hands of Manchester City in their last Premier League clash before the worldwide break.

Mertesacker looked set to be the unlikely hero when he nodded in his first Premier League goal since December 2013.

Granit Xhaka whipped in a lovely corner and there was Per Mertesacker, making his first Premier League start in 18 months, to nod the ball home in powerful fashion.

Alex Iwobi and Mesut Ozil, on as a replacement for the injured Danny Welbeck, were both guilty of putting their attempts too close to goalkeeper Heurelho Gomes, letting Watford off the hook.

Moments later came the penalty drama, and then in injury time when Andre Carrillo's shot was blocked Cleverley lashed in a dramatic victor.

'I'm not so happy with our overall level in the second half.

Gunners boss Arsene Wenger said before the game that he would assess Sanchez's physical and mental state before deciding to whether select him for the match at Vicarage Road.

"After that, at 1-1, there was no need to panic. I believe he doesn't necessarily have to leave Arsenal to reach the World Cup".