Chelsea manager Antonio Conte refused to comment on Alonso avoiding any punishment for the tackle, but praised his players for shaking off a woeful first-half showing at St. Mary's. For the spirit that we were showing during the game.
With Southampton reeling, Giroud then completed Chelsea's comeback when he pounced on a loose ball inside the area to drive into the bottom corner. "They did this in the second half".
"I saw the right will to comeback and find a hard result because when you are 2-0 down it is not simple".
Speaking at his post-match news conference, Conte said: "For sure in every moment of the game you must think positive and that you can come back despite the score being 2-0 down".
In the same way we did not give up in Saturday lunchtime's game, we are not giving up in the chase for a top-four place either.
Rudiger's omission from the side will see his future at the club brought into question as a number of other top sides were keen on purchasing him last summer.
Southampton got their reward for a good start after 20 minutes as Ryan Bertrand's blistering run down the left ended with the ball being cut back to Dusan Tadic, who tapped it in past Thibaut Courtois.More news: WhatsApp now lets you redownload old photos after you've deleted them
Giroud replaced the ineffectual Morata and, 10 minutes later, the France global gave his side hope when he leapt to head Alonso's cross from deep for only his second goal for Chelsea since joining them from Arsenal in January.
"We didn't show great desire and great will to fight. If you don't have something in you're heart, it's hard to come back and win this game".
And their frustration overspilled as tempers flared when Marcos Alonso was lucky to escape unpunished for raking his studs down Shane Long's calf.
Next up is a trip to Burnley on Thursday before a return date with Southampton, at Wembley on Sunday in the Fa Cup semi-final. But the Frenchman knew what had to be done, and his low strike in the 78 minute helped Chelsea secure all three points.
After a toothless performance from Alvaro Morata, Giroud's introduction was exactly the injection of life that we needed.
It is the first time the London side have come from two goals down to win a Premier League game since August 2002, when a team managed by Claudio Ranieri clawed their way back against Charlton.
Five minutes later Hazard levelled by smashing home Willian's cross from close range.