Arsenal fell to its fourth loss in five Premier league games on Saturday when West Bromwich Albion beat Arsene Wenger's side 3-1 Saturday to further jeopardize its chances of Champions league qualification.
Arsenal's downfall once again was its porous defense with Craig Dawson heading in twice from corners on another day of protests against Wenger.
In the skies above the Hawthorns, a plane trailing a banner reading "No contract Wenger out" appeared during the game. Inside the stadium, "Enough is enough time to go" posters were also held aloft by fans who want the Frenchman to leave at the end of the season after 21 years in charge.
In the last month, Arsenal has been eliminated from the Champions league by Bayern Munich and only won two games - both against fifth-tier teams in the FA Cup. Arsenal is further than ever from winning the Premier league title for the first time since 2004 and is five points adrift from the fourth Champions league place.
Arsenal fell behind in the 12th minute in central England when Dawson glanced in his first header from Nacer Chadli's corner.
Although Alexis Sanchez equalized inside three minutes, West Brom regained the lead in the 55th when substitute Hal Robson-Kanu scored with only his second touch of the game by putting the ball under substitute goalkeeper David Ospina.
The crossbar prevented Arsenal leveling again through Danny Welbeck's header before Dawson sealed the win from a set piece in the 75th minute.
Guardiola under fire
Pep Guardiola has urged Manchester City to ease their Champions league pain by securing a vital win against liverpool, while leaders Chelsea aim to move a step closer to the Premier league title this weekend.
Guardiola's side were eliminated from Europe's elite club competition in stunning fashion on Wednesday as they blew a 5-3 first leg advantage to go out on away goals following a 3-1 defeat at Monaco.
It was another major setback for City manager Guardiola, who had never before seen one of his teams knocked out before the Champions league quarter-finals.
Former Barcelona and Bayern Munich boss Guardiola was heavily criticised for his tactics and team selection in Monaco.
With third placed City just one point ahead of fourth placed liverpool in the battle for a top four finish, Guardiola needs a lift at Eastlands on Sunday and he is eager to see how his team respond to the situation.
"Qualification for the Champions league will be tough until the last game of the Premier league," Guardiola said.
"It will be good to see how everybody reacts, myself and the players, after going out of the Champions league.
"It's an important game before the international team break against one of the best teams in the Premier league."
Having won three of their last four games, liverpool have opened up a five-point gap on fifth placed Arsenal as the race for Champions league qualification hots up.
Arsenal travel to West Bromwich Albion with Gunners boss Arsene Wenger hoping last weekend's FA Cup win over minnows lincoln has lifted his players' shattered morale.