Paul Merson said ‘efficient machine’ Arsenal ‘look unbeatable’ after a routine Premier League win over Burnley.

First-half goals from Viktor Gyokeres and Declan Rice earned Arsenal a fifth successive Premier League victory and a ninth successive win in all competitions.

Mikel Arteta’s side have only conceded three goals this season and the clean sheet at Turf Moor was Arsenal’s seventh in a row – one short of the club’s all-time record.

The win sent Arsenal seven points clear of second-placed Bournemouth before their intriguing clash with Manchester City on Sunday.

Merson says Arsenal’s sensational form is ‘not a good cocktail’ for the other title hopefuls and even said his former team ‘look unbeatable’.

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Rice was singled out for special praise by Merson, who described his performance against Burnley as ‘phenomenal’.

‘At the moment, Arsenal look unbeatable,’ Merson said on Sky Sports.

‘They defend so well. Apart from the free-kick that hit the...