Arsenal got their third straight win in the Premier League with an emphatic 4-0 victory over sorry West Brom at the Hawthorns.
Kieran Tierney put the dominant Gunners ahead in the first half as he cut inside a curled home a delightful effort on his weaker foot as the Baggies looked all at sea.
If the first was good, the second was even better as a slick move between saw Alexandre Lacazette involved before Emile Smith-Rowe fed Bukayo Saka to double the away side's lead.
The away side picked up where they left off in the second half as Lacazette got their third and fourth after some helpless defending from the Baggies.