Real Madrid's Brazilian teenager Vinicius Jr. felt the darker side of his club's rivalry with Atletico Madrid when he was bitten by an opponent after scoring twice in a reserve-team derby match on Sunday.
Vinicius, 18, moved to Real in June a year after signing from Brazilian giants Flamengo for 42 million euros ($48.7 million) but has been unable to get into the first team and has been playing for their reserve side Real Madrid Castilla in Spain's regionalised third division.
He netted both Real's goals in the derby which finished 2-2 but clashed with Atletico Madrid B's captain Tachi, who tried to sink his teeth into the back of the Brazilian's head as the pair tussled for the ball.
Tachi escaped a red card and was only given a booking for the incident while Vinicius also picked up a yellow card for dissent.
Barcelona forward Luis Suarez is infamous for biting opponents on three occasions while playing for Ajax, Liverpool and Uruguay although he has not done it again since joining the Catalan club in 2014.
Joaquin gives Betis long-awaited home win over Sevilla
Veteran Real Betis midfielder Joaquin Sanchez came off the bench to score the only goal to give his side a 1-0 win over city rivals Sevilla on Sunday and end a 12-year wait for a home victory in the local derby.
Joaquin, 37, became the oldest scorer in a Seville top-flight derby when he rose to head home at the near post in the 79th minute, shortly after the visitors had had midfielder Roque Mesa sent off for two bookings.
Betis went into the derby under pressure after taking only a point from their first two games and made an intense start as Cristian Tello and Loren went close to scoring, while Sergio Canales had a goal ruled out for offside after the video assistant referee (VAR) was consulted.
Sevilla nearly scored through Franco Vazquez and Gabriel Mercado but handed their rivals an extra man advantage when Mesa was booked for fouling goalkeeper Pau Lopez, and Joaquin took full advantage to the delight of the 60,000 supporters inside the packed Benito Villamarin stadium.