A late Roberto Pereyra penalty gave Quique Sanchez Flores a near-perfect start to life as Watford manager once again in a stirring 2-2 draw with Arsenal at Vicarage Road.
The Hornets started the better of the two sides, and spurred on by a voracious Vicarage Road atmosphere, they twice went close to taking the lead early on - with Tom Cleverley and Gerard Delofeu testing Bernd Leno with speculative strikes - before Pierre-Emerick Aubameyang opened the scoring with a fine finish on the turn.
The Gunners' lead was taken against the run of play, but it seemed to knock Watford out of their stride, and Unai Emery's men took full advantage with a second goal on the half-hour mark.