Eberechi Eze, who joined Crystal Palace last year, has performed very well and Roy Hodgson is confident that the 22-year-old will continue to shine with the Eagles next year.
boss Roy Hodgson is not concerned about losing the England Under 21 international and is confident the Eagles will do all they can to keep the youngster.
"It has not really occurred to me as we've only just signed him," Hodgson told reporters.
"It was quite an investment for our club to pay £15 million and then £5m in add-ons - that's quite a big investment for us.
"I wasn't contemplating that it was an investment that would only last one season and then he would move somewhere else, so I hope that is not the case.
"I am pretty sure the club will work very, very hard to make sure any interest in him will be warded off because we bought him into the football club to play for us and to make us better, we didn't bring him into the club to make some small profit on a transfer at the end of the first season.
"It is his first season since coming from the Championship and you expect people to need a bit of time to get fully adjusted to play at this level, and we are delighted with him."