Alex Sandro Lobo Silva (born 26 January 1991) is a Brazilian professional footballer who plays as a left-back for Serie A club Juventus and the Brazil national team.
At club level, Alex Sandro began his career with Atletico Paranaense, and later also played for Santos on loan. In 2011, he joined Porto for €9.6 million, alongside teammate and countryman Danilo, who plays as a right back. He joined Juventus in 2015, winning the domestic double in his first three seasons, followed by two more consecutive league titles over the following two years.
At international level, Alex Sandro also plays for the Brazil national football team, for which he has gained over 10 caps so far. At youth level, he also represented the Brazil national under-20 football team, winning both the South American Youth Championship and the FIFA U-20 World Cup in 2011, as well as the Brazil national under-23 football team, with which he won a silver medal at the 2012 Summer Olympics. He was later also part of the Brazil squad that won the 2019 Copa América.
On 24 August 2019, on the opening matchday of the 2019–20 Serie A season, Alex Sandro assisted Giorgio Chiellini’s goal in a 1–0 away win against Parma. On 18 December, he provided two assists, one for Paulo Dybala and another for Cristiano Ronaldo, in a 2–1 away win against Sampdoria.