Swansea City 1 Brentford 0
Andre Ayew's terrific late strike gave Swansea a 1-0 win over 10-man Brentford in the first leg of their Sky Bet Championship play-off semi-final.
Ayew, who had earlier seen his second-half penalty saved by David Raya, struck nine minutes from time at the Liberty Stadium with a ferocious volley from 16 yards.
The Ghana striker had actually started the move before getting on the end of an exchange of passes between Conor Gallagher and Jay Fulton. Brentford had to play the final 25 minutes with 10 men after Rico Henry was shown a straight red card for a lunging tackle on Connor Roberts, although television replays suggested he did make some contact with the ball.
Two minutes earlier, Raya was the Bees' hero after saving Ayew's spot-kick, awarded when Pontus Jansson sent Rhian Brewster tumbling in the box.
Brentford had finished the Championship season three places and 11 points above Swansea.
Swansea will take the slender lead into Wednesday's second leg at Griffin Park.