The 24-year-old scored 10 goals from his 84 appearances for Beira-Mar.
Sampaio had long been linked with a move to the Sardinian outfit, who will start their Serie A season with the clash with Roma on September 11th.
The 24-year-old scored 10 goals from his 84 appearances for Beira-Mar.
Sampaio had long been linked with a move to the Sardinian outfit, who will start their Serie A season with the clash with Roma on September 11th.
