Goal updates from the Emirates.
Matt Jarvis put West Ham ahead of Champions League-chasing Arsenal in North London on Tuesday.
Luckily for Wenger, Lukas Podolski was on hand to equalise on the brink of half-time.
Olivier Giroud excellent first touch led to a fine finish as the Gunners took the lead early in the second half.
Aaron Ramsey then set up Podolski for his second goal, as Arsenal went 3-1 ahead.
