The Hammers midfielder believes he made the right choice in moving to Upton Park after critics questioned his decision to snub interest from Champions League clubs
The 25 year-old was reported to have attracted interest from several Champions League clubs after his contract with Wigan expired in July but chose to join Sam Allardyce's recently promoted side.
However, with the Hammers sixth in the Premier League after an encouraging start to the new campaign, the Senegal international believes he has proved his doubters wrong.
"People did say 'Why are you going to West Ham when you can play in the Champions League?' but they can see why I did now," he told West Ham TV.
"It is a very big club in England and I am very happy to be here, now I am hoping that our good performances will continue.
"That is why I came here. When I spoke to the club I knew they were trying to build a very good team.
"We are working very hard every day on the training ground and you can see it is paying off."