WATCH: Douglas Costa sent off for spitting in mouth of opponent

Juventus maintained their 100% start to the new Serie A season on Sunday in a game that will be remembered for Cristiano Ronaldo scoring his first goals for the club

Ronaldo scored two second half goals against Sassuolo, helping the Italian champions to a 2-1 victory. Sassuolo scored their only goal of the game in stoppage time, with Douglas Costa sent off for the home side soon after. The former Bayern Munich winger was not blown up for a strong challenge on Federico Di Francesco in the build-up to the visitor's goal and appeared to elbow him as he attempted to get back to his feet. With the pair exchanging words soon after the incident, Costa somehow managed only to get a yellow card for a head-butt on Di Francesco which took place right in front of the referee. https://twitter.com/ElevenSports_UK/status/1041340663521009664 The Brazilian was soon sent off, however, after spitting in his opponent's face. https://twitter.com/ElevenSports_UK/status/1041341523135221761 https://twitter.com/adriandelmonte/status/1041340768114204673