Most of the Belgium vs Tunisia reaction will focus on it being a case of so far, so serene for the 2/7 World Cup Group G favourites, but is it a concern that they haven’t been tested yet?

Braces from Eden Hazard and Romelu Lukaku and a late Michy Batshuayi effort secured a 5-2 victory that lifts Belgium to six points and eight strikes from two games.

The Red Devils join Russia, Uruguay, France and Croatia in getting this far with a perfect record, and are being treated as an increasingly more credible threat at 6/1 in the Tournament Winner betting.

However, there is no recent precedent for World Cup winners getting off to a flawless start. 2014 champions Germany were held 2-2 by Ghana in their second game, 2010 victors Spain lost their opener 1-0 to Switzerland and Italy drew 1-1 with USA on matchday two in 2006.

The last time it happened was for Brazil in 2002 – a curious tournament in which several frontrunners like holders France, Argentina and Portugal all failed to make it out of their groups.

So it might be a blessing if Belgium suffer a setback against England in their final World Cup Group G fixture. Roberto Martinez’s men are 29/20 favourites, with the Three Lions at 9/5.

There’s also a theory that it could prove advantageous in terms of the draw to finish second, as the table-toppers risk a quarter-final showdown with either Brazil or Germany.

Belgium vs Tunisia reaction – advantage Romelu Lukaku?

Lukaku has shortened to 3/1 to be World Cup Top Goalscorer after following up his double against Panama with two more goals against Tunisia. This moved him level with Cristiano Ronaldo at the top of the charts.

The question mark hanging over the 25-year-old is whether he can be as effective in the knockout rounds as he was against the less illustrious sides he’s faced in World Cup Group G.

The Manchester United striker netted in his first ever tournament knockout match against USA at the last World Cup, but hasn’t fired in three appearances on such a stage since.

A lot will also depend on how far Belgium can go, as the quarter-finals proved their ceiling at their last two tournaments.