Real Madrid have announced an agreement to sign highly-rated teenage defender Jesus Vallejo from Real Zaragoza.
Aston Villa have continued their spending spree after securing the services of Rudy Gestede from Blackburn on a five-year contract.
The 27-year-old Chile international is currently enjoying a starring role at the World Cup finals with his country.
Reports in Spain and Italy claim that Real Madrid are set to make an approach to Juventus over the midfielder's signature.
The 27-year-old - who has also been linked with Manchester United - admits he is unsure as to what the future holds.
"Will I stay at Juventus? I do not know," he told Sky Italia.
"I just think about the World Cup and the national team now.
"After the World Cup we will see what will be my future."
Vidal joined Juventus from Bayer Leverkusen in 2011.