Brighton are tracking Boavista striker Alberth Elis.
O Jogo says Elis' form this season has caught the eye of several clubs abroad, including Brighton and Watford.
In his first season in Portugal, Elis has scored five goals in 24 official matches. He has a contract to 2024.
Both Brighton and Watford are in contact with Boavista about a price for Elis.
The Honduras international, 25, joined Boavista last summer from Houston Dynamo for around £750,000.