Marco Sau scored twice as Cagliari rallied to secure a dramatic 4-3 victory over 10-man Sassuolo.

The Sardinians were ahead after 14 minutes thanks to Sau but a Sassuolo fightback saw Claud Adjapong and Lorenzo Pellegrini turn the game on its head before the latter player was dismissed for fouling Davide Di Gennaro.

Francesco Acerbi's penalty after the break put Sassuolo two goals ahead, only for Marco Borriello's thunderous strike and Sau's second to level things up.

Then, with time running out, Brazilian forward Diego Farias burst into the box and drove home a 76th-minute winner at the Stadio Sant'Elia.

ends