Which side scores the match's first goal hands that team immediate control of the match and shapes the opponent's tactical approach.
A scoreless game resolves as "no first goal"; an early strike alters substitution plans, in-play risk-taking, and downstream match dynamics.
Erling Haaland and Kylian Mbappé are the headline finishers most likely to decide who opens the scoring.
Starting midfielders, wingers, centre-backs and the two goalkeepers matter too, and coach selection choices (lineups, wing usage) strongly affect early chances.
Starting XIs, formations, and pressing intensity create the volume of early scoring opportunities and who gets clear chances.
Set-piece quality, penalty decisions, defensive errors, early yellow/red cards, weather and pitch condition can all swing which team scores first.
Matchday team sheets and confirmed XIs published about an hour before kickoff are the first concrete signal to watch.
Track the opening 15 minutes for shots, corners, counterattacks, VAR/penalty incidents, early substitutions or injuries, and any tactical shifts that produce a fast chance.