Alexandre Lacazette scored twice as Arsenal further eased their early season struggles by thrashing West Brom 4-0 at a snow covered Hawthorns on Saturday.

After seven Premier League games without a win, the Gunners have now won three in a week to dampen talk of a relegation fight and move back into contention for the European places.

Kieran Tierney’s stunning solo goal opened the floodgates as Sam Allardyce’s men have now conceded nine times in two games.

Bukayo Saka rounded off a brilliant team move to double the visitors’ lead before Lacazette struck twice in four second-half minutes.

West Brom are yet to win in four games since Allardyce took charge and the former England manager needs to quickly instill the defensive discipline he has made his trademark at previous clubs if the Baggies are to have any chance of survival.

Just over a week ago Allardyce said Arsenal were in a battle against the drop, but Mikel Arteta’s decision to finally put faith in his crop of talented youngsters has turned his side’s season around.

Saka was again the shining light, while Tierney and Emile Smith Rowe also impressed.

Arsenal’s poor run was principally caused by a struggle to score goals, but they were a threat from the off despite the treacherous conditions.

Sam Johnstone denied Hector Bellerin and Saka inside the first 10 minutes, but he was powerless to stop Tierney’s stunning opener on 23 minutes.

The Scotland international left Darnell Furlong trailing in his wake before cutting inside onto his weaker right foot and curling into the top corner.

Arsenal’s second was reminiscent of their flowing football at the height of the Arsene Wenger era as Saka fed Lacazette, whose brilliant pass played Smith Rowe in behind the West Brom defence and he squared for Saka to tap into an empty net.