Middlesex play Sussex Sharks and Somerset v Glamorgan in the T20 Blast - listen to BBC Radio 5 Live Sports Extra and local radio commentary.
Glamorgan chief Hugh Morris hopes the new Hundred competition will supplement the one day of 2020 international cricket Cardiff has been awarded.
Division Two leaders Lancashire thrash Glamorgan by an innings and 150 runs with a fine performance from their seam quartet.
Lancashire captain Dane Vilas smashes a superb career-best 266 as his team reach 544-9, a massive 287-run lead over Glamorgan.
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Gary Kirsten, coach of the Cardiff-based men's franchise, believes The Hundred format will win over fans.
Glamorgan bowler Malcolm Nash says "five minutes of his life" when he was struck for six sixes by Sir Garfield Sobers is still spoken about 50 years on.
Analysis and opinion from the BBC's cricket correspondent.
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