Watford face a battle to keep hold of Stefano Okaka this summer.

TMW says enquiries are arriving from across Europe for the Italy centre-forward.

Olympiakos are preparing a major offer for Okaka, who impressed for the Hornets last season.

The striker's situation at Vicarage Road, however, could be in doubt after manager Marco Silva's arrival to replace Walter Mazzarri.

Olympiakos are willing to spend big to tempt Okaka away from England in the coming months.