Manchester United have reportedly contacted the agent of Bayern Munich defender David Alaba as the speculation surrounding the Austria international continues.
Alaba will leave Bayern on a free transfer this summer, and a number of clubs have been credited with an interest in the versatile defender, who is aiming to win his 10th Bundesliga title this season.
According to ESPN, Real Madrid are the favourites for the 28-year-old, with Zinedine Zidane's side facing the possibility of having to replace club captain Sergio Ramos.
However, the report claims that a number of other clubs, including Liverpool, Chelsea, Manchester City, Atletico Madrid, Barcelona and Paris Saint-Germain, have also been in contact.
United were thought to be out of the running for the Austrian, but the Red Devils have allegedly also been in touch with Alaba's agent Pini Zahavi to discuss a possible switch to Old Trafford.
Red Devils boss Ole Gunnar Solskjaer is believed to have made it clear to the 20-time English champions that he wants to sign a left-footed centre-back ahead of next season.
