Arsenal are desperate now. A free-kick is swung into the box and met by Gabriel but his header is easily claimed by Wayne Hennessey.

Theo Walcott is on for Mohamed Elneny. daice thrown for the last time.

John Hartson
Former Arsenal striker on BBC Radio 5 live

"It was all about the win today for Arsenal. The have put all their eggs in one basket now with the top four. If they get the win today then job done. It is imperative Arsenal win and pick up those three points."

At normal speed, Petr Cech looked to be moving in slow motion as he went down to fluff that save from Bolasie's goalscoring shot. Suddenly, there is frustration and anger coming from the stands.

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John Hartson
Former Arsenal striker on BBC Radio 5 live

"Credit to Palace, they have four centre-forwards on the pitch away from home' Alan Pardew has been brave to try and get that on chance, that little bit of magic and it has come from Yannick Bolasie. He hits his shot with so much power it squeezes in, Petr Cech gets his hand to but but can't keep it out."

Olivier Giroud's first touch is an effort on target. But is a tame redirection of Mesut Ozil's cross at the near post which Hennessey saves.

Soon after, Alexis Sanchez earns a yard on the edge of the box but snatches at his shot and pulls it wide.

Olivier Giroud and Aaron Ramsey come on for Alex Iwobi and Danny Welbeck. Palace also make a change with Wilfried Zaha replacing Jason Puncheon.

Soon after, Bakary Sako is a yard or two away from bringing Palace level with a header at the near post from a corner. A big warning for Arsenal. This game isn't over yet.

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Hector Bellerin and Alexis Sanchez combine down the right but the latter's effort - dug out with inches to spare before he crossed the byline - loops up into Hennessey's hands.

John Hartson
Former Arsenal striker on BBC Radio 5 live

"I am sure Alan Pardew will be saying 'get it wide to Emmanuel Adebayor'. He is  so powerful in the air with with his size and his leap."

Scott Dann into the book for bringing down Danny Welbeck after the striker had stuffed him down the left side.

A cross to the back post falls at the feet of Nacho Monreal, but his shot is blocked. A couple of Arsenal corners follow but they are unable to test Hennessey.

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Quick thinking from Mesut Ozil - taking a free-kick on the edge of the palace box quickly - creates a chance for Alexis Sanchez, but his diving, glancing header goes just past the far post.

Adebayor gets possession and boos echo around the ground. The cheer when he gives the ball away on the edge of the box is bigger than the one that greeted the goal.

Palace are hanging in there. Mesut Ozil's cross to the back post is met by Alexis Sanchez but his header goes wide of the post.

Chance for Welbeck! Mesut Ozil chips a free-kick into the box, which palace fail to clear, giving the England striker a chance to hook an acrobatic shot on target that Hennessey is well-placed to block.

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Yep, it's panto time. As you would expect, an awful lot of boos greet the introduction of Adebayor, who replaces Connor Wickham.

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He's a popular man in these parts, Emmanuel Adebayor. He certainly looks to be enjoying his return to the Emirates. He is about to join the action. I wonder what the reception from the home fans will be?

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Mesut Ozil takes the free-kick, beats the wall and watches in frustration as the ball curls just past the post. Great effort.

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Alexis Sanchez is tripped by Joe Ledley near the Palace box. The midfielder picks up a booking and his side could be in trouble...

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Palace win a corner in a rare attack. Danny Welbeck does a sterling job at the near post to head clear and set up a counter-attack that ends with an Alexis Sanchez chip that loops harmlessly into the hands of Wayne Hennessey.