In this World Cup group-stage opener, the structure of the goal total line is sending signals in favor of the under. Let’s start with the market. Many bookmakers have uniformly set the line at 3.5 goals, with the over priced between 0.85 and 0.98, while the under sits between 0.86 and 0.93. On the surface, the pricing looks balanced, but a closer look at the movement reveals the real picture. In the lead-up to kickoff, several bookmakers kept raising the over price. At one company, the over was pushed up from an opening 0.88 to 1.01, a notable increase. At the same time, some bookmakers lowered the under price from an opening 0.95 to 0.86, which is also a significant move. The combination of a higher over price and a lower under price suggests that the market does not strongly expect the match to go beyond 3.5 goals. More importantly, some bookmakers moved the line from 2.5 goals up to 3.5, while the over price jumped from 0.33 to 0.91. That is a massive line hike, and the even sharper rise in price shows this is not an expression of confidence in the over; rather, it is a way of balancing bets by setting a higher threshold alongside relatively unattractive odds. The fundamentals also point toward the under. Spain’s over rate in their last 10 matches is only 40 percent. Although their attacking quality looks impressive on paper, four of their last six games finished with three goals or fewer. Against compact defensive setups, Spain’s ability to break teams down often drops sharply. In their last match against Peru, they won 3-1, but against Iraq and Egypt they were held to dull 1-1 and 0-0 draws respectively. In a World Cup opener, Spain’s main objective is to secure the three points safely rather than chase a convincing blowout, and that will likely limit the players’ urgency and willingness to take risks. Cape Verde also has an over rate of just 40 percent in its last 10 matches. Against stronger opponents, the team tends to sit deep and defend in numbers, with limited threat going forward. Facing a top side like Spain in the World Cup opener, Cape Verde’s tactical choice will almost certainly be to retreat completely and aim to lose by as little as possible. Once that low block is in place, Spain’s finishing efficiency will be put to a severe test. Taking the line movement and both teams’ styles into account, the under is the side worth backing.