Bournemouth's stuttering form continued as the second-placed Cherries lost 2-0 to fellow Championship high-fliers Blackburn.
Rovers - who stay in fourth place - took the lead somewhat against the run of play as top scorer Ben Brereton Diaz's shot from a tight angle came off the bar and went in off Ben Pearson.
Jan Paul van Hecke's powerful header from Joe Rothwell's corner midway through the second half sealed the three points for Rovers.
Brereton Diaz almost made it 3-0 with six minutes to go but Mark Travers saved well low down.
Scott Parker's side have failed to win six of their past seven games and are now two points behind leaders Fulham while Rovers are four points behind the Cherries and one off third-placed West Bromwich Albion.