Arsenal looked uncomfortable from the first minute against Watford and the Hornets took advantage. Walter Mazzarri’s side took the lead after 10 minutes thanks to a Younes Kaboul’s free-kick which deflected in off Aaron Ramsey.
Things got worse just three minutes later when Troy Deeney was first to a rebound and made it 2-0.
Mustafi was the only player left from Arsenal’s 5-0 thrashing of Southampton and it showed. Watford were in control with Arsenal becoming increasingly frustrated.
As if thing weren’t bad enough, Ramsey went off injured after 20 minutes and was replaced by Alex Oxlade-Chamberlain.
Watford created chances after chance and could have had an even bigger lead had Cech not tipped Sebastian Prödl’s header over the bar. The Hornets continued to push forward relentlessly and Arsenal were fortunate to be just 2-0 down at the break.
The Gunners made another change at half-time with Theo Walcott came on for Olivier Giroud. Walcott had two chances in quick succession. He was found by both Laurent Koscielny and Mesut Ozil but the first one was wide and Heurelho Gomes produced a great save for Walcott’s second effort.
After several attempts, Arsenal eventually got back into the game in the 58th minute. Alex Iwobi volleyed into the far corner to get Arsenal back into the game following a chip from Alexis Sanchez.
Despite a consistent level of pressure, Arsenal didn’t create any clear chances in their search for the second goal. In the 86th minute, Lucas Perez’s half-volley smashed off the crossbar but that was the extent of it.
Arsenal were incredibly average in the first half. They were unable to overcome a two goal deficit and Watford left the Emirates with a deserved three points. Arsenal’s title chances are over and a trip to Stamford Bridge beckons on Saturday. A loss against Chelsea would leave them 12 points behind the league leaders.