Rasmus Kristensen, Marc Roca, Pascal Struijk and Robin Koch are all at risk of suspension for Leeds United in the next two games.
Roca and Kristensen are both on four bookings each, while Struijk and Koch have amassed three cautions apiece.
Their bookings total will reset once the season reaches its midway point after Leeds' 19th league game. But all four players will be walking a tightrope for the upcoming Premier League fixtures against Aston Villa and Brentford respectively.
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Leeds travel to Villa Park to face Aston Villa on Friday, before returning to Elland Road where they welcome Brentford on Sunday, January 22.
The Whites also face Cardiff City at Elland Road in their FA Cup third-round replay in between the Villa and Brentford games, although bookings from cup games don't carry forward into the Premier League.
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