West Ham assistant manager Mervyn Day admits he is unsure over his own future and that of boss Alan Curbishley.

The duo could be shown the exit door at Upton Park in the summer even though they have guided the team to a mid-table position in the Premier League.

West Ham face Aston Villa on Sunday in their final game of the season but Day revealed he did not know if the pair would still be in charge next term.

"Who knows, who knows, you can't help speculation," said Day.

"Everybody in football, you speak to any manager or coach, and they acknowledge what a decent job we've done so far in the circumstances.

"Whether people in our position think that speculation has got some foundation or whether it's justified is another matter."

West Ham were hammered 4-1 by champions elect Manchester United last Saturday but the fans, who have been critical of the team's performances on numerous occasions this season, were not calling for change.

Day insists they still have plenty to play for as they head into the last game and admits his side are desperate to hold on to 10th place.

"For personal pride, it doesn't matter if it's Spurs or Newcastle, we want to finish in the top 10," said Day.

"That's been the goal ever since the start of the season. We wanted to be in the top half of the table."

Day would be delighted if they could hang on to 10th place because of the way their season has been ruined by injuries to key players.

He added: "If we achieve that (finishing 10th), given the amount of injuries we've had, I think we'll have done reasonably well.

"Realistically I've never known, at any club I've been at, the number of injuries we've sustained this year.

"Obviously we want to get all our players back and have a real go next year, but this year I think the players must take enormous credit for putting their all in and really grafting for us.

"We can't have any complaints about that. I think, given the players we've asked to play out of position and do jobs they're not used to doing, that the club has done very well to be in the top 10 most of the season.

"If you turn it round to this time last year, with one game to go, and you said to West Ham fans you'll be 10th next year, no problems with relegation, most of them would have accepted that."

Meanwhile, goalkeeper Robert Green has spoken of his desire to become an England regular under Fabio Capello.

Green has enjoyed a fine season for the Hammers but has yet to convince England's management that he is worthy of regular inclusion.

Green won his only cap against Colombia three years ago and while he is frustrated at being overlooked, he knows he is up against first-class competition.

"It's a difficult situation to be in but there is a lot of good guys," he told Sky Sports News.

"A few years ago people were bemoaning the fact there weren't any quality keepers.

"You look now and I'd like to think I'm up there with them (the best) but I can't get in the squad.

"It's a difficult situation with regards to England but it's something I have to deal with. I just have to keep working hard and hope to get that chance."

Green remains positive that the appointment of Capello will give all those players previously overlooked by Steve McClaren a chance to prove themselves.

He added: "You'd hope it's a clean slate. It's a new chance to impress. I came in at the last minute, in the last squad, and hopefully in the two training sessions I did something to stick in his mind.

"You have to wait and see. You can only do as much as you can, and if that doesn't earn you a chance, then so be it."