Belgium sent an ominous message to England with their 5-2 thrashing of Tunisia on Saturday.
Roberto Martinez's men had initially laboured in their opening game against Panama before the floodgates eventually opened, but there were no such problems this time around.
Consultation goals from Dylan Bronn and Wabhi Khazri were the only real blots on their copybook.
Eden Hazard opened the scoring with a penalty after just six minutes, before Romelu Lukaku thrust himself into Golden Boot contention with a first-half brace.
Hazard then bagged another after the break and Michy Batshuayi, after bottling three golden opportunities, finally made it five.
Belgium thrash Tunisia 5-2
So, barring an unprecedented defeat to Panama tomorrow, England and Belgium look set to compete for top spot in their group when they meet later this week.
It was always tipped to be the most exciting game in the group and even if both teams rest players, it promises to be a gripping contest to decide first and second place.
Of course, England can't look past Panama but there was plenty of discussions over England in the BBC Sport studio after the Red Devils' impressive victory.
Frank Lampard had plenty to say about England's chances against Belgium and despite the impressive nature of the Tunisia win, he was feeling pretty confident.
Lampard on England's chances
"I think they'll both look at resting players, if England win like you say," Lampard noted.
"I don't think England have seen anything there that they didn't know already, we're very aware of the quality of this Belgium team, they're very strong.
"They'll be analysing it for sure but again, England are in a good place now where if they get another positive performance against Panama and play well, then we can actually start worrying about what we can do to Belgium.
"We can compete.
"England can, without a doubt, more than hold themselves against this Belgium team. They're dangerous of course they are, but England can still hurt them."
That's the optimism we like, Frank!
Of course, it must be noted that England struggled to breakdown Tunisia quite like their Belgian adversaries, but their defensive performance was considerably better.
That's not to mention the fact England could have led Tunisia by three or four goals in the first-half.
Belgium definitely look dangerous, yet England will feel confident when they look at some of the defending on show today.
Fans will have to hope that both nations play their full strength teams and the fireworks come in tandem.
What's your prediction for Belgium vs England? Have your say in the comments section below.