Cricket to introduce red cards for 'most extreme' on-field

Liverpool launch appeal of Alexis Mac Allister red card - to argue 3-match ban - Liverpool FC - This Is Anfield

Field hockey - Wikipedia

Chelsea player ratings vs Aston Villa: Thiago Silva error and mindless Malo Gusto red card pile more pressure on Mauricio Pochettino

McGrath backs red cards in cricket

The ICC's red card introduction will keep amateur sides professional, and they should be applauded, The Independent

Cricket is introducing red cards for the first time in the history where players will be sent off for 'extreme' ill-discipline

The Players With the Most Premier League Red Cards

What are the rugby red card rules at the Rugby World Cup, do two yellow cards equal a red and how does the sin bin work? – The Sun

Owen Farrell could miss start of World Cup after red card in England win over Wales

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