Thomas Vermaelen believes Andy Carroll will be the biggest threat for Arsenal when they take on West Ham United in the English Premier League Saturday.

Arsenal will look to take all three points at Upton Park, after suffering a disappointing 2-1 defeat to Chelsea last weekend.

"I played against Andy Carroll when he played for Liverpool," Vermaelen told Arsenal Player.

"He suits their way of playing at the moment. At West Ham they play some long balls and with Carroll up front, he's a tall guy. He's good with his head so he will be a big challenge.

"But we always want to play our own game as Arsenal. First we have to match them in the fight. If there's a long ball, we want to fight for that ball and bring the ball down as quickly as possible and play our own game.

"I've played at Upton Park a few times in the past and I must say I like the stadium and the atmosphere there, so it's quite nice to go there and play again.

"We go into every game to get the three points, and especially after the defeat against Chelsea. We want to get the win because that's really important if you look at the ranking at the table."

Meanwhile, Arsene Wenger revealed Jack Wilshere is making good progress after the midfielder played 60 minutes last Monday in the Gunners' Under-21 game against West Brom. "Jack is doing very well but we need to be a bit patient," Wenger said.

"He has played 60 minutes in the reserve team and he needs a few games, progressive build-up to get his body used again to competition, to shocks, to fights.

"But he is doing extremely well, the situation looks very good. We have to be cautious, not crazy, because of his talent you are always pushed in a situation where you would like to rush him back, and we have to resist that.

"The next match should be next week and he is working very very hard [in training]. The body is like that, when you have been out of competition for 14 months it takes a long time to find your sharpness back. You cannot rush it."