Derek Adams' Plymouth Argyle beat high-flying Blackburn 2-0 at rain-lashed Home Park to end Rovers' outstanding unbeaten League One run.
Plymouth's Portuguese forward Reuben Lameiras fired Argyle ahead after 25 minutes with a thumping volley which flew into the top of David Raya's net.
Rovers failed to clear a free-kick into the penalty area and - when the ball dropped to Lameiras - he let fly to shock Blackburn, who arrived at Home Park unbeaten in 18 league games and in second place. As a result they dropped down to third.
Bouyant Argyle doubled their lead after 37 minutes when target man Ryan Taylor finished off the Greens' best move of the half.
Antoni Sarcevic began the move, passed down the left to playmaker Graham Carey and his near-post pacy cross was turned home with aplomb by striker Taylor.
Rovers boss Tony Mowbray introduced Dominic Samuel for Danny Graham at the start of the second half and then Corry Evans and Joseph Nuttall in the 58th minute, but the away side failed to make an impact.
Plymouth still kept pressing and defender Derrick Williams had to head Jamie Ness' 65th-minute goal-bound shot around the post after being teed up by in-form midfielder Sarcevic.