Who's in danger of being suspended for potential semi-final tilts?

The four semi-final contestants in this season's Champions League will be determined this week, as Real Madrid, Juventus, Monaco, and Atletico Madrid look to make good on the advantages they each procured through their respective quarter-final first leg fixtures last week.

While getting to the final four is the goal for each club in the competition, arriving at that stage unscathed remains vital.

With yellow card accumulation not being wiped clean until after the current quarter-final stage, there is a large contingent of players - from all eight teams left standing - that are one yellow card away from watching a potential semi-final contest from the stands.

Divvied up by match, here's a rundown of the 25 players who would miss the first leg of their team's semi-final if they are booked this week.

Real Madrid vs. Bayern Munich (April 18)

• Real Madrid: Toni Kroos, Luka Modric, Sergio Ramos
• Bayern Munich: Jerome Boateng, Arturo Vidal

Leicester City vs. Atletico Madrid (April 18)

• Leicester: Wilfred Ndidi, Islam Slimani, Jamie Vardy
• Atletico Madrid: Jose Gimenez

Barcelona vs. Juventus (April 19)

• Barcelona: Neymar, Gerard Pique, Ivan Rakitic, Luis Suarez
• Juventus: Juan Cuadrado, Sami Khedira, Mario Mandzukic

Monaco vs. Borussia Dortmund (April 19)

• Monaco: Jemerson, Radamel Falcao, Valere Germain, Thomas Lemar, Djibril Sidibe
• Borussia Dortmund: Ousmane Dembele, Raphael Guerreiro, Sokratis Papastathopoulos, Marcel Schmelzer