Slipped away: Arsenal's Jack Wilshere shields the ball from Peter Crouch
Leave a leg in: Mikel Arteta of Arsenal competes with Charlie Adam
Goalkeeper Wojciech Szczesny desperately tries to start an attack quickly from the back
Quicker off his feet: Erik Pieters gets to the ball ahead of Santi Cazorla
Mine: Stoke City's Dutch defender Erik Pieters vies with Alex Oxlade-Chamberlain
Nipped over: Olivier Giroud struggled to get a foothold
in the game as Arsenal fell behind in the title race
Tight: Lukas Podolski of Arsenal competes with Geoff Cameron during a goalless opening 45 minutes
Challenge: Tomas Rosicky of Arsenal battles with Glenn Whelan in the first-half at the Britannia
No way through: Marko Arnautovic and and Erik Pieters of Stoke block out Santi Cazorla
50/50: Jonathan Walters of Stoke City in action against Laurent Koscielny
Leaning on: Giroud is forced to the ground by Stoke midfielder Charlie Adam
Helping hand: Adam comforts Giroud after bringing him to the floor in the second-half
Fair play: Jack Wilshere is assisted by Charlie Adam as he suffers from cramp
Jonathan Walters celebrates with Peter Crouch after his penalty made it 1-0 to Stoke
From 12 yards: Walters sent Szczesny the wrong way from the spot to open the scoring
Down: Arsenal look dejected as they fall four points behind Chelsea
at the top of the Premier League
Pittance: Szczesny goes to throw his shirt into the Arsenal fans after the game
Get going: Wojciech Szczesny picks the ball out of the net in the 76th minute
Slotted home: Walters scored from the spot for just his third goal of the season
Three points: Stoke fans go wild as Walters celebrates by sliding in front of them
Dejected: Bacary Sagna can't believe it at the final whistle as Stoke take all three points
Stumble: Wenger's side now face a tough run of fixtures
and must be on song to keep up with the race
Been and gone: Substitute Yaya Sanogo misses a glorious chance in injury time to save a point
Close: Crouch reacts to his missed effort in the first-half, which Stoke just edged
Right back at you: Stoke fans display a banner calling Arsene Wenger
a hypocrite for the amount of red cards Arsenal have gathered during his tenure
Effort: Stoke striker Peter Crouch strikes for goal in the first-half,
with Per Mertesacker closing in
Not chosen: Mesut Ozil takes his seat on the bench at the Britannia Stadium
Tall order: Stoke striker Peter Crouch takes the ball down with Jack Wilshere hot in pursuit