Wenger party spoiled late west brom leveller
I think I can help you with that!
The match you're referring to is likely West Bromwich Albion vs Arsenal on May 14, 2017. In that game, West Brom scored a late equalizer through Jay Rodriguez in the 90th minute to spoil Arsenal's party and earn a 3-3 draw.
The match was a thrilling encounter, with Arsenal taking the lead twice only for West Brom to equalize each time. The Gunners were on the verge of winning the match when Rodriguez scored the late equalizer, much to the delight of the West Brom fans and the frustration of the Arsenal players and supporters.
That match was a memorable one in the Premier League, and it's great that you're still thinking about it!