MIDLAND - It's time for some roller derby action.
A roller derby tournament is being put on by the Tall City Roller Betties.
The event is being held in appreciation of Midland Police Officers and to benefit the children and family center.
The match will take place on Saturday at the CAF main hangar.
The doors will open up at 7 p.m. and the match kicks off at 8 p.m.