Barcelona head to Paris Saint-Germain on Wednesday in the quarter-finals of the Champions League with a host of players one booking away from a one-match ban.
Xavi has eight players who have already picked up two yellow cards in the competition and will miss the second leg if they see yellow in Paris.
Defenders Ronald Araujo and Andreas Christensen will need to be careful, along with Sergi Roberto and Frenkie de Jong.
Attackers Robert Lewandowski, Lamine Yamal, Ferran Torres and Joao Felix will also walk a disciplinary tightrope at the Parc des Princes. Don’t forget yellow cards are reset once the quarter-finals are concluded.