Jurgen Klopp's much changed "mentality monsters" had to dig deep once more but Liverpool have kept their Premier League title hopes alive.
The Reds travelled south without Mo Salah, who is nursing an injury, and knew they needed to pick up three points if they were to stand any chance of overhauling Manchester City on the final day. Joel Matip headed home their crucial second goal, which put them 2-1 up after Nathan Redmond had opened the scoring for Southampton.
Klopp made nine changes at St Mary's but his irrepressible team overcame an early setback to keep the quadruple dream alive. Takumi Minamino scored their equaliser shortly after they'd fallen behind and they dominated proceedings despite the likes of Sadio Mane, Thiago and Luis Diaz all sitting out.