Liam explained that this was his rival when they started off their journies once upon a time and that Trevor used to be determined to outshine him in any way that he could. 
 After saying "Alola" to everyone, Trevor commented that he had just been to Kalos and he took 8th in the Vetress Conference and noted that the girl who won the tournament lost to the first member of Kalos' Elite Four, He was indeed taking the trials as well, having already defeated one of the two on the island.