Manchester United have joined the interest in Sporting Lisbon winger Zezinho.
Arsenal and Manchester City have been tracking the teenager this season and A Bola says United have now made their interest known.
Zezinho has been likened to former United and Sporting star Cristiano Ronaldo, now of Real Madrid.
The concern for Arsenal and City is that with so many Portuguese speakers at United, the Red Devils have an automatic inside-running for Zezinho should he decide to leave Sporting in 2011.
