Moviola La Gazzetta dello Sport: three episodes under the magnifying glass: referee Matteo Marcenaro's match was not exactly easy.
In the 9th minute of the second half, Theo Hernandez steps on the penalty area line and Fazzini, looking for the ball, tackles the Achilles tendon of the Milan left-back. Marcenaro does not award the penalty and relies on Valeri: the alleged lip reading "he took the ball first" said to Theo by the referee would not hold up since it seems that the Empoli player never touches the ball.
This was a penalty more than the one awarded and then revoked (in the 13th minute of the second half) through the "on field review": Rebic and Ebuhei clash, Marcenaro immediately decides to indicate the penalty spot but the handball (which was high) is not there after the double deflection. A thrilling finale: Olivier Giroud scores in the 90th minute but with his arm (and the replay shows it), a goal cannot be given.