Sandro, who played here for 1.5 years, transferred to Porto in the summer of 2011 for 9.6 million Euros.
Sambacı left-back, who played in Portugal for 4 years, went to Juventus in the summer of 2015 for 28 million Euros.
The current market value of the 32-year-old player, who has a contract with his club until 2024, is 4.5 million Euros.