The winners of the meeting in Kaliningrad are guaranteed to top the group, but if the match finishes as a draw the places will be decided first of all on fair play.
The powerful striker is Belgium's record scorer with 40 goals in 71 appearances but is aware he has his doubters, who accuse him of going missing in big matches.
Belgium had a two-goal lead within 16 minutes after Hazard scored from the penalty spot and Lukaku angled a low, left-foot shot into the corner of Tunisia's goal. And if their first two games are anything to go by, opposition teams have a lot to worry about. Hazard and Lukaku have had inspired seasons for club and country, and are older and better than the raw talents that took the field in Brazil four years ago.
Argentina star is desperate and frustrated says Mascherano
Nigeria can advance with a draw as long as they stay ahead in goal differential if Iceland beats Croatia. She said: "I did not go because I have very young children and because it was scheduled like this".
Lukaku now has four goals in just two World Cup appearances in Russian Federation this summer.
The United player now has four goals at Russian Federation 2018, making him joint top scorer alongside Portugal's Cristiano Ronaldo. Ronaldo has scored four goals in Portugal's first two games.
Their final round-robin game - against England - will provide a deeper insight into how Hazard, Lukaku and Co can measure up when up against an opposition of real pedigree.
The striker may well be rested for the mouth-watering clash against England after suffering a knock against the Tunisians.
Often described as the institution that unites Dutch-speaking Flemings, French-speaking Walloons and the small German community, a team where most of the players are multilingual is growing in confidence.
US Open to change seeding rules for tennis players returning after pregnancy
Because, to be honest, I feel pressure to be Serena. "It was this whole new strength that I actually never knew I had". Williams, made her return to the tour in March at Indian Wells and Miami, following the birth of her daughter.
Courtois is now at the World Cup in Russian Federation.
Maintaining a winning momentum can be precious at the World Cup, the counter-argument that needs to be carefully considered by Martinez and England coach Gareth Southgate as they try to strike a balance.
"As expected, it was a very hard match".
England would obviously much rather face the Chelsea forward than Lukaku, but could actually face an easier route through the tournament should Belgium top the group depending on other results, such as Mexico beating South Korea.
Training is conducted in English under Spanish coach Roberto Martinez, who spent a decade managing in England.
49 injured in Zimbabwe rally blast
State media have called Saturday's blast in Bulawayo, an opposition stronghold, an assassination attempt. For ordinary voters like Harare-based Crispen Pfundirwa, their main concern was now security.