Sharks face Yorkshire in semis
The match will take place at 11am ahead of the second semi-final which will take place at 2.30pm between Hampshire Royals and Somerset.
The final is scheduled to start at 6.45pm.
Tickets for Finals Day have gone on sale to Sussex members today and any remaining tickets will also go on sale to non-members from 4pm tomorrow (Friday July 27).
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Hide AdAdult tickets are priced at £50 whilst Juniors under the age of 16 are £10.
There will also be a coach running from Hove to Cardiff and back, set to leave at 6.30am priced at £30 per person.
To book your tickets, please call 0844 264 0206.
All three matches will also be shown on TV at The PROBIZ County Ground with food and drink available all day.
Further details to follow in due course.