United made a positive start after going four unbeaten but their new-found belief seemed to evaporate in driving rain and swirling wind on the south coast.
Manchester United boss Ole Gunnar Solskjaer in an interview describes the 1-0 defeat at Bournemouth as a "step back" and says his defence could have done better against Josh King's "moment of magic".
"If you want to get into the top four you need to win games like this," said Solskjaer. "It is a step back for us today, but we need to shake it off and go again."
King, who scored the winner in Bournemouth's only previous Premier League win against the Red Devils in 2015, was allowed to chest down Adam Smith's cross into the box before turning Aaron Wan-Bissaka and volleying between David de Gea's legs from close range.
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