Porto striker Mehdi Taremi is a late market target for Chelsea.
A Bola says Blues boss Thomas Tuchel has targeted 30-year-old Taremi.
Under contract until 2024, the frontman is valued at £22million.
The Iran international bagged 26 goals in 48 games as his club won the Portuguese league and cup double last season.
Taremi is likely to face England at the World Cup finals in November.
He has 58 caps and 27 goals for his country.