Everton have reportedly made an offer of just under £1million for striker Magaye Gueye - but Sunderland, Birmingham and Bolton are also keen.[LNB] The 19-year-old Strasbourg forward has been linked with a move to a number of Premier League clubs, while Ligue 1 outfit Lyon are also thought to be interested in the youngster, who is regarded as a hot prospect for the future.[LNB]Gueye, a France Under-21 international, produced a number of eye-catching performances for Strasbourg last season although he could not prevent them slipping into the third tier.[LNB]Everton have already added former Leeds striker Jermaine Beckford and Portuguese starlet Joao Silva to their squad this summer, and David Moyes is keen to further bolster his attacking options.[LNB]The Toffees may face a battle to keep hold of their star players during the transfer window, following their failure to qualify for Europe last term.