Queensland prop Tom Gilbert has dislocated a shoulder midway through the opening half of State of Origin I.
Gilbert hurt his right shoulder attempting a tackle in the 19th minute against NSW at Adelaide Oval on Wednesday.
The 22-year-old Dolphin's injury was followed by the Maroons being penalised for having 14 players on the field - his replacement Lindsay Collins entered before Gilbert departed.
Collins and Gilbert were both in play for about 15 seconds before the error was called to referee Ashley Klein's attention.
Earlier this month, the NRL fined South Sydney $15,000 for playing with an extra man.
But that mistake was compounded by running out with a different starting side to their official team sheet for their round-nine win over Brisbane.
The Rabbitohs played with 14 men for roughly 20 seconds.