Nuno Tavares is confirmed to be the subject of advanced talks between Porto and Lazio, who are negotiating terms ahead of a possible transfer. The defender has long been on the radar of Porto, who see him as the perfect addition to their squad as they look to strengthen a key area of the pitch. Progress on talks has been made, though a final agreement is not yet in place and other clubs are said to be weighing-up whether to join the race for his signature. Besiktas, Al-Ittihad and Chelsea have not withdrawn their interest and could still influence the outcome. Lazio have recently been linked with Davide Frattesi while Porto have had no rumoured targets. Stay tuned for more details as the story develops. Need more Porto transfer rumours? Follow @PlayerSwitchCom on Twitter for news and updates as they happen.