Brigade batsman Kyle Magee has been added to the Warriors squad for their crucial clash with defending champions Leinster Lightning at Eglinton on Tuesday.
The 19 year-old former Irish youth international replaces the now retired Boyd Rankin in the only change from last week's squad that took on the Northern Knights.
It's a must win game for the North West, who have never tasted victory in the 50-over cup, now in its ninth year.
Lightning top the table and victory for them would ensure an eighth successive title.
Play at Eglinton gets under way at 10:45am.
North West Warriors