Cristiano Ronaldo grabbed more headlines for his reaction to Maurizio Sarri's decision to replace him within ten minutes of the start of the second half against AC Milan. The Italian brought on Paulo Dybala, who went on to score the winnng goal, but his departing number seven may find himself in further hot water.

Cristiano Juventus

Forward

Portugal

Ronaldo appears to risk Serie A ban

Former Italian footballer, Antonio Cassano, spoke on the Italian television show Tiki-Taka, reflecting back on his time as a player at Roma. He left the Olympic Stadium early during a derby against Lazio and was forced back. He likened it to the weekend's case with the Portuguese star who also left before the end of the game.

Straight off | Juventus' Portuguese forward Cristiano Ronaldo goes directly to the changing rooms. MARCO BERTORELLO (AFP)

"Did he leave before the end of the game?" Cassano asked. "You can't do that because there is an anti-doping control.

"I had to go back to the stadium urgently to avoid a two-year ban," he explained.

Cristiano left the pitch against Milan and headed straight for the changing room rather than the bench, as is customary. Minutes later he departed the Juventus Stadium. We await to see if further action will be taken.