Accrington’s Colby Bishop and Cardiff’s James Collins were the latest names added to that list this week.
And while there’s hope a deal can be struck for the former, Pompey are already giving up hope of bringing the latter to Fratton Park.
But what about those other attackers rumoured to be on the Blues’ radar?
What’s happened to those prospective moves? Where are those players now?
Well, we’ve revisited them all to find out whether they can still come true, whether they’ve been consigned to the rumour mill bin or whether other clubs have since come in to ruin the Blues’ plans.
17. James Collins - Cardiff
The 31-year-old Republic of Ireland international was linked with a move to Pompey this week. That rumour has since been proven correct, with Danny Cowley admitting he had been exploring a loan move after being made aware of his availability. However, hope of pulling off such a deal now looks remote, with Derby set to outmuscle the Blues for Collins' signature with a permanent switch. Picture: Pete Norton/Getty Images Photo: Pete Norton