The 30-year-old was shown a straight red card by referee Lee Probert for a foul on Armand Traore during Monday's win over QPR and the decision has now been upheld
The 30-year-old was sent off by official Lee Probert in the 79th minute of his side's 3-2 victory in the west London derby on Monday for a late challenge on Armand Traore.
|9/4||Newcastle v Fulham is 9/4 with Coral to go over 3.5 goals|
Sidwell will now miss the upcoming trips to Aston Villa and Newcastle before serving the final match of his sanction in another derby clash with Chelsea.
The former Reading star has made 20 Premier League apperances for Martin Jol's side this term, scoring four goals.