India vice-captain Smriti Mandhana struck a scintillating half-century to help Southern Brave crush Trent Rockets by 10 wickets and book their place in the knockout stages of The Hundred here.

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Mandhana impressed with a 31-ball 57 that included nine fours and two maximums after Lauren Bell (4-10) picked up the best figures of the season to restrict Rockets to 88 for eight at the Ageas Bowl on Thursday.