Milan general manager Adriano Galliani has refused to rule out moves for Didier Drogba, Emmanuel Adebayor, Andriy Shevchenko or Karim Benzema.
After Brazil legend Ronaldo sustained a potentially career-ending injury, the club are now short of options up front, and Galliani has confirmed they are in the market for a replacement.
"I will not talk about our transfer policy until May or June, but with Ronaldo out of action we do need a fourth striker to join Alberto Gilardino, Alexandre Pato and Pippo Inzaghi," he told the Italian press.
"All the big clubs need four strikers and it is better to have an abundance of options than too few. Inter have a similar problem with Hernan Crespo not having too much space, but there is no alternative at this level."
Asked about the possibility of signing Premier League trio Drogba, Adebayor and Shevchenko as well as Lyon prodigy Karim Benzema, he replied: "All four of them would fit the bill."
Champions League clashMilan played out a 0-0 draw with Arsenal at the Emirates Stadium on Wednesday in the UEFA Champions League, and Galliani is cautiously optimistic about their chances of completing the job in the return leg.
"It will be a very difficult second leg against Arsenal. We have a 50 per cent chance of qualifying, but usually in these cases we do well on home turf."
While boss Carlo Ancelotti has not yet revealed his plans for the second leg, Galliani hopes to see Inzaghi play up front.
"Inzaghi has scored five goals in the last three finals. The second leg will be like a cup final, but it's up to Carlo Ancelotti to pick the side."