The Gunners maintain their solid home record against the Baggies.
A single strike from Olivier Giroud was enough to give Arsenal all three points against West Bromwich Albion at the Emirates Stadium.
It was the Frenchman’s 16th league goal of the season in a week when Gunners manager Arsene Wenger admitted the team has relied too heavily on the 27-year-old.
Although defeat means West Brom are not mathematically safe from relegation from the Premier League, if Norwich City lose to Chelsea in their match they will be.
The home side were good for their win, with Giroud scoring the one and only goal of the game on 14 minutes to help silence some of his critics.
However, with QPR striker and well known target for Wenger, Loic Remy, spotted at the ground watching from the stands, the France international is likely to have competition come next season.
After the break the Baggies settled into things a bit more and would have leveled things had it not been for the brilliant reactions of goalkeeper Wojciech Szcesny, who denied Morgan Amalfitano in a one-on-one situation.
Lukas Podolski should have extended the lead in the second half when he hit the post from six yards out after getting on the end of a Mesut Ozil cross.
As it was the hosts finished their home league fixtures with just one defeat in front of their own fans, which was a 1-3 loss to Aston Villa on the opening day of the season.
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