Wayne Rooney's Derby County side have been dealt a huge blow to their hopes of signing Marcel Lewis this summer.

What's the talk?

That's according to a report by The Telegraph, who claim that the Chelsea attacking midfielder has agreed on a move to Belgium with Union Saint-Gilloise.

According to the report, both Derby and Huddersfield Town had been keeping an eye on Lewis in Chelsea's youth setup ahead of a potential move this summer.

Huge blow

Having yet to make a senior appearance in his short footballing career, missing out on the signing of Lewis is not likely something that will have much impact on how well Wayne Rooney's side fare in their league campaign next season - as the 19-year-old would have more than likely linked up with the club's youth team prior to making the move to first-team football.

However, with the versatile midfielder - who can operate from defensive, central, left, right and attacking midfield, as well as from either wing - highly impressing all through the Chelsea age groups, having scored 19 goals and provided 21 assists over 76 appearances in all competitions in the Blues academy, it very much appears as if the Rams have missed out on an exceptionally talented player for the future.

Furthermore, with Lewis opting for a move to the rather less prestigious Belgian leagues over potentially playing Championship football with Derby, this too would not appear to bode well in terms of the way the Rams are perceived by younger talents, or indeed any players, at present, given the turmoil surrounding the club.

As such, while Rooney will undoubtedly have other, more pressing targets in mind for the summer transfer window, missing out on the 19-year-old is not exactly the best way to kick his summer transfer business off, and the inability of his club to secure a deal for the teenage gem is likely the leave the 35-year-old livid.

In other news: Rooney must avoid summer disaster over "fantastic" £17.5k-p/w dud, Derby can do better - opinion