After a surreal night on the Baltic where England struggled to contain their satisfaction with a defeat that offers them an easier path to the final, Belgium are trusting that World Cup fortune will favor the fearless. He is expected to revert to the lineup that defeated Tunisia in the opening Group G fixture on Tuesday against Colombia, with Dele Alli fit to return in place of Ruben Loftus-Cheek.
Inevitably after so many changes, England were not as fluent as they had been in spells during their first two matches and his partnership with Jamie Vardy rarely clicked.
Like Belgium's Martinez, he will balance consistency against giving first-choice legs a rest and giving others game time.
There is no sign of fatigue in Kane's blistering start in Russian Federation and he would have either three or four days before England's next game, depending on where they finish.
After the narrow win, Belgium finished the group stage at the first spot and will now face the runners-up of Group G, Japan, in the round of 16 match.
Beckham's fellow cap centurion Frank Lampard has suggested England could go all the way after a 6-1 romp against Panama saw Kane claim the match ball on the back of his last-gasp heroics in the 2-1 triumph over Tunisia.
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He said: "We've got loads of friends who were umming and ahhing whether to come".
Southgate, though, was adamant nothing other than three points against Belgium has been discussed, insisting his side are prepared for the prospect of facing more hard opponents, having beaten Panama and Tunisia so far in Russian Federation.
England coach Southgate is unsure if winning is an advantage. I can't imagine a situation where I stand in front of the group of players I have got and start talking to them about anything else.
"I think tomorrow's a celebration", Martinez said.
"We need to keep winning football matches and we want to breed a mentality that everybody in our squad wants to constantly win", said the manager, who has created a relaxed atmosphere for his young charges. But he linked up well down the left with Danny Rose and made more telling runs for his team-mates in the second half.
"We've not won a knockout game since 2006, why are we starting to plot which venue would be better for a semi-final is beyond me really", Southgate said.
I considered putting the two Belgium yellow cards on here and working through tactically how they made that happen.
The last 16 - The group stages are over and the round of 16 is now decided, we know all of the knockout fixtures and we can look forward to the matches as the next round begins.