Southgate must now reflect on England's first loss at this World Cup in Russian Federation while he prepares to face the risky Colombians in Moscow on Tuesday, while Belgium go to Rostov to play Japan on Monday.
Below are more details on the broadcast, which will be aired in Spanish and will begin at 1:30 p.m. ET.
The defeat to Belgium was the first time England have been beaten since a loss to France last summer.
When you reach the quarter-finals of a World Cup teams start to raise their game so I'm not sure there really is any easy route. The match will also be livestreamed in Spanish on TelemundoDeportes.com and via the Telemundo Deportes En Vivo and NBC Sports apps. If they lose then this game will be viewed as the night when vital momentum was lost.
Belgium came close to a second goal in the final minutes when Jordan Pickford made a diving save to keep out a rasping Dries Mertens effort but by then both sides seemed to have accepted their lot as they looked ahead to the second round.
Thursday's Group G finale pitted co-leaders Belgium and England against one another. I don't think it would be professional of us to put those players at a risk of missing the knockout phase. Meanwhile, England, if it beats a James Rodriguez-less Colombia side (which it should), will get the victor of Sweden-Switzerland.
Belgium coach Roberto Martinez has no regrets about beating England 1-0 to set up a potentially tricky run in the World Cup knockouts.
When the England squad got out of bed today they had no idea if they will be playing Japan, Senegal or Colombia next week, but they will know their potential opponents when they kick-off in Kaliningrad at 7pm (UK time).
"We've played well in the games leading into it and played well in the tournament".
"We made eight changes, nine if you include the substitution at half-time".
And people are nearly making out that England did this on goal, one fan said: "England losing is possibly the smartest thing they could've done.avoid Brazil, Argentina, Uraguay, Portugal, France and Belgium". If England can rediscover the football they unearthed in the first two matches when Southgate reverts back to his first team, watch out Colombia.
"We know our squad inside out, where they are, the different strengths they have and problems they pose the opposition", said Southgate.
'Of course, if we don't win, I understand people would say whatever about the Belgium game, but for me that was the right thing to do and you've got to take decisions you believe are the right ones'.
Jose Pekerman has refused to entertain the prospect of seeing Colombia´s stuttering World Cup campaign end at the first hurdle.
Another late chance saw Belgium instigate an ugly goal line scramble, but ultimately, they couldn't force the ball in.