Arsenal midfielder Mikel Arteta says they must not relax.

Just two points separate the three sides, and Arteta has challenged Arsenal to maintain their focus.

"The Premier League this year is the most difficult one since it has existed," the Spaniard said.

"I think you have four or five teams looking to win it. We are going to put everything in to win it.

"We had a little spell where we had a difficult time, but we have come back and we are feeling good."