Struijk will be suspended for games against Newcastle United, Fulham and West Ham United after his tackle on Liverpool' s Harvey Elliott on Sunday.
The 22-year-old won the ball cleanly but in catching the 18-year-old midfielder he knocked him over, causing a fractured dislocated ankle.
But Elliott was quick to absolve Struijk of blame, and has actually apologised to the defenderfor the ban.
On hearing of the decision, Elliott took to Instagram - the medium Struijk used to apologise to him for the tackle - to say: on Instagram: "Sorry about this Pascal. I think it's wrong! But it'll soon blow over brother and you'll be back in no time smashing it again. Keep positive."
Despite coach Marcelo Bielsa initially indicating they were unlikely to, Leeds decided to appeal against the punishment but the Football Association have stood by referee Craig Pawson and his video assistant Peter Kirkup.
The suspension leaves Leeds short at centre-back for Friday's trip to St James's Park.
Struijk was on the field because Diego Llorente had suffered a muscle injury and Robin Koch missed the game with a pelvic problem. Right-back Luke Ayling filled in alongside Liam Cooper for the final half-hour and may do so again at Newcastle, with Stuart Dallas coming out of midfield to play in defence.