Southampton moved up to third in the Championship as Russell Martin saw his Saints side crush his former club Swansea City 5-0.
Joe Aribo gave Saints the lead with their first effort on goal as the Swans paid for two early missed chances.
Southampton were gifted a second goal as Sam Edozie scored following a howler from Swansea goalkeeper Carl Rushworth.
Saints sub Ryan Fraser then scored twice before he turned provider for Che Adams who tapped home a fifth goal.
Southampton's thumping win lifts them above Leeds United and just four points behind Ipswich Town in the race for an automatic promotion spot.