O'Brien aggravated a hamstring injury and misses the game at Stormont.
The Hills all-rounder Max Sorensen replaces O'Brien in the squad of 13.
Tickets are still available for the match on the gate.
KEVIN O'BRIEN has been ruled out of the Hanley Energy Challenge ODI against Australia tomorrow (THURS).
O'Brien aggravated a hamstring injury and misses the game at Stormont.
The Hills all-rounder Max Sorensen replaces O'Brien in the squad of 13.
Tickets are still available for the match on the gate.
