Belgium needs only a win today to guarantee a playoff spot. Even in the case of a draw, they might not make the group.
Of course, Croatia is a difficult opponent, who was also a finalist in the last World Cup. And a draw today would be enough for Croatia to make the playoffs. Still, it can play into Belgium's hands, as they only need to go forward, not play to keep the score. Belgium has a much stronger squad and their recent World Cup performances can also be considered successful.
Forecast: Belgium is closer to win than to lose. We recommend the “2 DNB” bet, odds 1.95