West Ham United boss Gianfranco Zola must wait until the end of the season to move for Sampdoria striker Antonio Cassano.

Zola is eyeing Cassano for a shock move to Upton Park and has been encouraged by the former Roma star's clash with Samp fans on the weekend.

Aware of the growing transfer interest in his client, Cassano's agent, Beppe Bozzo, said: "Until the end of the season, we will not evaluate the situation with Cassano."

Tuttosport says West Ham, Juventus, Napoli and Inter Milan are all chasing Cassano.