Fans will celebrate long into the night after the club sealed a place in football's second tier for the first time since 1987.
The Cherries have won six consecutive games and now hope victory at Tranmere next weekend will see them crowned champions
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Southampton's marathon runners worked up a sweat as temperatures touched 20c but there was help on hand to keep them cool.
The Duchess of Cambridge has been driven to St Mary's Hospital in London in the "early stages of labour", Kensington Palace has said.
The Duchess of Cambridge has been on maternity leave since the week before Easter.