Listen to BBC local radio commentary as Hampshire host Somerset in County Championship division one.
A full round of day-night County Championship games is to be played for the first time featuring England's Test players.
Nottinghamshire make 429-9 as they beat Somerset by 24 runs in a scintillating One-Day Cup quarter-final at Taunton.
England Test pair Keaton Jennings and Haseeb Hameed are set to feature for England Lions against South Africa A.
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BBC Points West visits Taunton as the Somerset ground prepares to host an England match for the first time in 34 years.
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How to get into Cricket
How to get into cricket - physical exertion with a chess-like element in matches which range from half an hour to five days.