Portsmouth's interest in Millwall teenager Tom Kilbey is likely to spark a bidding war for the midfielder.
Millwall have rejected an offer from Pompey for the 16 year-old and Lions boss Willie Donachie is now upset that more Premiership clubs are likely to attempt to prise the player away from the New Den.
Millwall have already agreed a fee with Chelsea for 15 year-old goalkeeper Sam Walker and earlier this year sold David Amoo to Liverpool.