Watford star Abdoulaye Doucoure believes that Ben Foster is the club's best signing.

Foster arrived from West Bromwich Albion, having previous history on loan at Watford from 2005 to 2007.

The 35-year-old is now the first choice keeper. And he has been in great form since the start of the season.

Doucoure believes Foster is the key to the team's success this campaign, where they are in 7th place in the Premier League.

"Ben Foster is a very, very good addition to the squad. I call him a legend because he is an unbelievable player," the Frenchman said to the Watford Observer.

"When you have a good goalkeeper everything starts well. Against Southampton he saved us a lot and then we got a goal to get a point.

"This year he has been very good and for me he is the best signing we made in the summer."