Rangers and Middlesbrough are chasing Portuguese starlet Tiago Pinto.
Defender Pinto has rejected a new deal with Sporting Lisbon and is starring on loan for Desportivo Trofense.
Pinto's agent is Jorge Mendes - the same advisor as Manchester United's Cristiano Ronaldo. Middlesbrough are also tracking the player.
Pinto said: "I will decide my future at the end of the season.
"I want to progress as a footballer and if a good proposition arrives from Europe I'll consider it because I'm ambitious."