According to WWE themselves, it appears that a match on tonight's Smackdown Live had to be pulled from the rundown.
Sin Cara apparently suffered a shoulder injury even though he did work live events on the weekend where he lost to Andrade 'Cien' Almas.
It is unclear if this is a real injury or one for storyline purposes.
Sin Cara not cleared for competition after being attacked by Andrade "Cien" Almas
Sin Cara is not cleared for competition this week, WWE.com has learned.
The masked man was originally scheduled to face his former friend, Andrade "Cien" Almas, tonight on SmackDown LIVE, but due to a shoulder injury suffered when Almas attacked him last Tuesday, Sin Cara will not be able to do battle.
Check back with WWE.com for more on Sin Cara's status as it becomes available.