West Ham manager Sam Allardyce has been in charge for four years

West Ham defender James Tomkins says the players are not feeling unsettled by the possibility of boss Sam Allardyce leaving in the summer.

Allardyce's contract is set to expire at the end of the season and the 60-year-old has not yet signed a new deal.

"It doesn't faze us. That is out of our hands," said Tomkins, 25.

"We have to do what we do on the pitch, whoever takes charge of us. It doesn't matter whether it is the [current] manager or not."

Allardyce, who has been in charge of the Hammers for four years, said on Friday any new contract would not be talked about until the end of the season.

In January 2014, he was given the backing of owners David Sullivan and David Gold after a 5-0 thrashing by Nottingham Forest in the FA Cup, followed by a 6-0 drubbing at Manchester City in the League Cup.

West Ham fans were vocal in their dissent of the former Bolton, Newcastle and Blackburn boss after a 1-0 loss to West Brom in April, but the club announced the following month he would be carry on in his job.

Allardyce's record at West Ham Played: 168 Won: 66 Drawn: 43 Lost: 59 Win%: 39.29

Results have improved this season, with West Ham picking up 38 points from 25 games so far and they occupy eighth place in the Premier league table.

"The manager has been brilliant this year. Obviously you are not going to keep everyone happy," said Tomkins.

West Ham face Tottenham on Sunday, a week after losing 4-0 to West Brom in the FA Cup.

Tomkins added that the players need to concentrate on their jobs and not let the speculation affect them.

"We just have to concentrate on the pitch and that's all we try and do. We don't talk about it much in the dressing room at all," he said.

"I know the fans quite well through all the years, they expect the most. It's a big club, they pay their money and travel all the way. They are all entitled to their opinions."