A total of nine players are just one yellow card away from being suspended for the Champions League final ahead of the semi-final second legs this week.
For holders Bayern Munich, striker Mario Mandzukic is at risk of a ban as they look to overturn a 1-0 deficit to Real Madrid from the first leg.
The Spanish giants have three players who will miss the Lisbon showpiece should they pick up a booking in Germany. Sergio Ramos, Xabi Alonso and Asier Illarramendi will all need to be wary of incurring the wrath of referee Pedro Proenca.
