With that result, Chelsea rose to fifth place in Premier League's standing table with 60 points, while Southampton is in 18th place with 28 points, meaning it may be among the teams to suffer relegation to the lower division.
But substitute Olivier Giroud inspired a turnaround with two goals either side of Eden Hazard's emphatic strike to spare Chelsea's blushes and leave the Saints three points adrift of safety.
"I am disappointed in the first half, I am the first to take the fault for that, but in the second half my players deserved credit". He had spoken many times about how much he wanted to score his first league goal for his new club, even after he put in good, if goal-less (outside of the FA Cup) performances.
"The most important thing is to show in every game the right passion and to fight until the end".
"As long as mathematically it's possible, we will believe".
CWG 2018: India finish penultimate day in ultimate fashion
It's a fourth Commonwealth Games medal for Heading who won gold and silver in Delhi in 2010 and silver in Glasgow in 2014. New Zealand triumphed in the women's decider, before Australia's men took gold in their match.
Late in the first half, with Southampton winning 1-0, Alonso appeared to go in high and catch Southampton forward Shane Long's leg with his studs.
"I saw a great reaction after half-time, the right will to fight, the right desire to win this game, despite the difficulties because they went 2-0 up".
"As has been the case all year, apparently we've got a soft underbelly", said Saints manager Mark Hughes, who is in danger of suffering his first-ever managerial relegation.
"I think in the second half we [could] finish the game [off]", Rudiger said last week.
"I have two good strikers and I try to make the best decision at the start or during the game".
Tyson Fury announces boxing return following doping suspension
The former unified heavyweight world champion has not fought since November 2015 and will return to the ring after a long legal battle with UK Anti-Doping.
Conte swiftly responded by hauling off the disappointing Alvaro Morata and Davide Zappacosta for Pedro Rodriguez and Giroud.
Conte was happy that his players showed "great heart" to comeback, but gave a frosty response about Rudiger's omission from the matchday squad.
"We are having a hard season and we know this, but especially in this situation I think you can see the men before the players".
"But we have had the right spirit to come back and win this game".
Khloe Kardashian & Tristan Thompson welcome Baby Girl
Williams later joked that maybe now would be the flawless time for her to walk in one of her fashion shows. She was planning on raising the baby there full-time and making that her and her daughter's home.