The Chilean had been doubtful coming into the match but dominated at Vicarage Road as the Gunners eventually secured an easy win following a competitive first-half.

Arsenal ran out comfortable 3-0 winners in Saturday’s Premier League clash with Watford, thanks to an inspired second-half performance from Alexis Sanchez.

The first-half had been edgy, with the hosts threatening the Gunners defence on a number of occasions, but after the break Arsene Wenger’s side seized control of the match, managing to keep pace with Manchester United in second place in the league table.

Alexis Sanchez opened the scoring after 62 minutes and continued to menace the Watford defence as Olivier Giroud and Aaron Ramsey also got their names on the scoresheet.