Arsenal made things typically hard for themselves against Crystal Palace on Thursday night, but they sealed all three points at Selhurst Park and that's all that matters.

Goals from Shkodran Mustafi and Alexis Sanchez (2) saw the Gunners win 3-2 and go level on points with Tottenham in the Premier League.

It was a well-deserved and much-needed victory, yet the headlines haven't been overly positive in the hours since.

A lot of people noticed how only a select few Arsenal players celebrated with Sanchez for both of his goals, especially the second.

It's something Thierry Henry picked up on and spoke about on Sky Sports, with the Frenchman suggesting there is a divide in the dressing room.

"I don't know what the situation is there, but usually when your team scores you don't look at who scores," said the Frenchman.

"If you start to think 'shall I go, shall I not go' there's something that we don't know exactly what's happening there.

"What I'm trying to say is you're not here for Alexis Sanchez, you're here for Arsenal. Arsenal scored, go and celebrate."

For Sanchez's second goal, a number of Arsenal's players initially celebrated with Jack Wilshere, who provided the sublime assist, before joining Sanchez.

However, a video is doing the rounds on Twitter showing that one Arsenal player didn't celebrate at all: Laurent Koscielny.

In the footage below, the camera shows Koscielny standing in Arsenal's half all by himself as his teammates celebrate with Sanchez.

Sead Kolasinac also didn't join in, but he at least congratulated Wilshere for the assist and was on the other side of the pitch at the time.

KOSCIELNY SNUBS SANCHEZ CELEBRATIONS

Strange. By no means are players obliged to celebrate, but as Arsenal's captain, Koscielny should be the one leading by example.

It does suggest there's a divide in the Arsenal dressing room, which is certainly something for fans to worry about as the second half of the season begins.