Arsenal midfielder Kim Kallstrom believes that his experience can help the Gunners secure Champions League qualification this season.
The victory over the Hammers propelled Arsene Wenger's men back into the top-four in the standings, and the Sweden international - who has over 100 caps for his country - says that experience could prove key in trumping the Toffees.
"I think that my experience is one of the reasons why he [manager Arsene Wenger] bought me here," he told the club's official website.
"I have some experience and I felt quite comfortable going into my first game. It's nice to complete a game, it's a long time since I played so it was a nice moment for me.
"We got the win that we really needed to get back in a new pace for the final four games."
The North Londoners, who sit one point ahead of their Merseyside counterparts, continue their top-four bid with a visit to Hull City on Sunday.