Chrundle the Great said:
For anyone interested, I found the full play, go to 8:24.
Royo is outside the lane for most of his run and then is re-entering it for the last two strides, not exiting it. So by rule, illegal run to set up the possibility of interference and then he hit the 1b glove to seal it. Out.
The rules contemplate the runner being outside the lane, but being outside must be the cause of the interference which it wasn't in this case because he was inside when the ball hit him. It was a bad call and even the announcers whittled it down to whether being on the chalk was in or out. They didn't know the answer. Chem94's post clearly shows Royo was in the lane when the interference occurred. BAD CALL that very likely determined the outcome.