Last update on. From the section Championship
Joel Piroe scores his fourth goal in six matches
West Bromwich Albion were defeated for the second time this season in the Championship. Swansea City was able to overcome them with a thrilling comeback victory thanks to Jamie Paterson and Joel Piroe.
Valerien Ismael was in the lead within minutes of Karlan Grant's fifth goal.
Piroe was coolly levelled by Paterson, who was the hero in the south Wales derby.
Improving Swansea rises to 15th, while Albion drops to third.
Boss Russell Martin, especially after such a poor start to the season, could get immense satisfaction from another successful Swansea performance.
His team is celebrating back-to-back league victories for the first season. West Brom are down in the third, having lost two of three. They were unbeaten in the league up until Stoke's defeat earlier this month.
Swansea came into the contest buoyant after Sunday's win over Cardiff, Martin's best day since August.
It took 52 seconds for any momentum gained from that win to disappear.
Swansea had a poor start to the possession, and West Brom punished Paterson's rash flick. Callum Robinson then scampered into a box and squared Grant for Grant to tap home at far post.
Albion was the only visiting team to score a league goal at this ground in this simple finish.
Although Swansea came back from their setback and controlled the ball for most of the first period, they were rarely able to challenge Albion's poor defence before the break.
Karlan Grant celebrates after scoring his sixth goal of this season
In the second period, the hosts saw their first goal when substitute Olivier Ntcham scored from the far post.
Albion had many opportunities to increase their lead. Matt Clarke headed wide, before Jake Livermore's drive skidded over the soggy surface. Ben Hamer made a sharp save.
But Swansea won when Paterson scored a third assist in the second game, lifting Piroe over the line.
The Dutchman fought back Clarke's challenge and stroked the ball beyond Sam Johnstone as the offside flag remained down.
Ntcham witnessed two more attempts fly wide as Albion wobbled. However, the visitors responded when Matt Phillips thunderous 25-yard drive was pushed onto Hamer's bar.
Martin's men were the ones who won when Piroe became Paterson's provider. Paterson danced past Kyle Bartley, a Swansea boy, before poking a shot in the corner.
Swansea head coach Russell Martin:
It wasn't a perfect start. Amazing how they came back from a slow start.
"Brave, such an impressive mentality, they stuck with the plan and played intensely in the second period against a team that is extremely well organised, aggressive, and difficult to play against - which explains why they are so high up in the league.
"I believe we deserved the win. The guys showed great courage tonight. They're becoming stronger physically, stronger in their relationship with one another, and more connected to what we are trying bring on the pitch for the identity of our team.
"We asked that you please support the Sunday performance with another one, and we were able to do that."
Valerien Ismael, West Brom's head coach:
"We are certain we are disappointed that the game was lost, especially after another mistake. The same happened against Stoke.
"We started the game very well. We were persistent, forced many long balls and Swansea did not have a great chance. Our transition was the problem all through the game. We lost the ball.
"Swansea returned to the game. They got the second air. We had a great chance with Matt Phillips, the game was close.
"We made a huge mistake at the end. This is why we lost the game. We don't have to react too strongly. We have to react appropriately for Saturday's next game.