However in that year's World Cup and the European Championships two years later, they faltered at the quarter-final stage.
"It's not easy to score that amount of goals in two games", said Martinez, as his team impressively followed up their 3-0 opening win over Panama and helped Russian Federation 2018 set a World Cup record for 27 tournament games without a goalless draw.
His first was a drilled left-footed finish from just inside the area to double Belgium's advantage after Eden Hazard's penalty before claiming his second with a cool, clipped finish on the stroke of half-time.More news: Hamilton reclaims championship lead with French GP win
The 6-1 scoreline was matched at [280.0] in the Correct Score 2 market, and England, with an equal goal difference to Belgium, can now be backed at [1.7] to win Group G (Belgium [2.3]).
Martinez could rest him against England on Thursday, and call on his back-up, Batshuayi, who scored Belgium's fifth.
"There'll be opportunities for other players, there'll be opportunities to give minutes to other players who deserve them".More news: Messi's Indian fan found dead in Kerala river
"We knew that if we scored early, the game would be easy", Hazard said. "We are a football team". "Belgium team will win, because I am here to push my team to victory and Belgium players are one of the best in the world", said one man dressed up with a cape, wearing tights and a shirt with a big B on it.
"He will tell you, he's not here to be the top goalscorer in the World Cup", Martinez told the Guardian. "We want to be a group that cares about each other and find a way to feed all the exceptional individual talent we have", said Martinez, who has spoken of his admiration for how Belgium's cultural and linguistic diversity also creates adaptable players.
"It's just the second game, we just need to keep improving like we are doing now". But while outscoring Panama and Tunisia 8-2, the defense and goalkeeper Thibaut Courtois looked like they could be exploited by better opposition.More news: Meghan Markle stuns at event with husband Prince Harry and The Queen
Can the former Wigan and Everton manager deliver at the World Cup? At the 2016 Euros, they wasted an early lead in a 3-1 quarterfinal loss to Wales.