Swansea claimed a heart-stopping 3-2 south Wales derby win with an added-time strike by centre-back Ben Cabango.
Swansea beat Bristol City 2-0 to remove any lingering fears of being dragged in to the Championship relegation battle on Sunday.
Middlesbrough missed the chance to close the gap on Sheffield United in second as they were held to a 1-1 draw by Stoke. Elsewhere, Blackpool thumped six past QPR.