Athletic Bilbao vs Arsenal: prediction & betting odds 16 September 2025

The Matchday 1 clash of the Champions League 2025/26 group stage between Athletic (Spain) and Arsenal (England) will take place on September 16 at San Mamés Stadium in Bilbao. Athletic vs. Arsenal: prediction and betting odds, statistics.

Athletic

The Basques finished fourth in La Liga last season, earning a spot in the Champions League group stage. This is only the team's second participation in this tournament in the 21st century. In their first appearance, Athletic played in the main round of this European competition in the 2014/15 season, finishing third in their group with just 7 points. It is also worth mentioning that over the past seven years, the Spaniards have only played in European competitions twice (reaching the Europa League semi-finals last season).

  • The team has not lost in regular time in 10 of their last 14 Europa League games (8 wins and 2 draws).
  • At least 3 goals were scored in 6 of Athletic's last 8 Europa League matches.
  • The Basques won in regular time in 6 of their last 7 home Europa League encounters.

Predicted lineup for Athletic (4-3-3)

Unai Simón – Yuri Berchiche, Dani Vivian, Jesús Areso, Aitor Paredes – Unai Gómez, Mikel Jauregizar, Oihan Sancet – Gorka Guruzeta, Álex Berenguer, Iñaki Williams.

Forward Nico Williams and midfielder Beñat Prados will miss the match due to injuries.

Arsenal

The Gunners are entering the Champions League group stage for the third consecutive season after finishing second in the Premier League. In the previous two editions, the club reached the quarter-finals and semi-finals once each. In the last edition of the European competition, the Londoners finished third in the group stage, securing 6 wins, 1 draw, and 1 loss. They then easily overcame PSV and Real Madrid, but were defeated in both semi-final matches by the eventual tournament winners PSG (0-1 and 1-2). Notably, the club ranks among the top five favorites for the tournament, holding the 5th position.

  • The club has not lost in regular time in 8 of their last 10 Champions League games (7 wins and 1 draw).
  • At least 3 goals were scored in 9 of Arsenal's last 10 matches in this European competition.
  • Both teams scored in regular time in 5 of the Gunners' last away matches in this tournament.

Predicted lineup for Arsenal (4-3-3)

David Raya – Gabriel Magalhães, Jurrien Timber, Cristian Mosquera, Riccardo Calafiori – Martín Zubimendi, Declan Rice, Mikel Merino – Eberechi Eze, Noni Madueke, Viktor Gyökeres.

Forwards Bukayo Saka, Kai Havertz, and Gabriel Jesus, defender Ben White, and midfielder Martin Ødegaard will miss the upcoming match due to injuries. The participation of defender William Saliba and midfielder Christian Nørgaard is doubtful.

Referee

Donatas Rumšas (Lithuania)

Matches – 12 (International matches, 2024/25–2025/26);

Yellow cards shown (including second yellows) – 38;

Average yellow cards per match – 3.2;

Red cards shown – 4;

Average fouls per match – 24;

Penalties – 25%.

Match Prediction: Athletic vs. Arsenal

The visitors are the favorites for the upcoming clash. Experience at such a high level plays a significant role and could be crucial. However, securing 3 points for the English side is unlikely to come without maximum effort. The Basques are very strong at home in European competitions and in La Liga. Athletic aims to delight their fans with a prolific performance, having scored in 26 of their last 28 home matches on the European stage.

The Gunners boast a strong attack, having scored in 9 of their last 10 Champions League matches. In this series, the club scored at least two goals 8 times. I anticipate that in the upcoming match, both teams will manage to score three or more goals. Such a number of goals were scored in 6 of Athletic's last 8 European matches and in 9 of Arsenal's last 10 Champions League games.

My prediction – Total over 2.5 goals

Athletic Bilbao — Arsenal betting tips 16 September 2025

The Champions League league phase begins in Bilbao with a marquee tie between Athletic Bilbao and Arsenal. A few weeks ago, Arsenal beat the Basques (3:0) in a friendly, but in an official setting their chances of a win will be slimmer.

Before the international break, Athletic Bilbao impressed with their consistency through a demanding Spanish LaLiga start. In that run, the team handled Sevilla (3:2), Rayo Vallecano (1:0) and Real Betis (2:1), while allowing just 2.11 xGA (third-best over that stretch). On Saturday, the team failed to get past Deportivo Alavés (0:1) despite a clear edge in chance creation (1.07-0.08 in xG). It appears that even with Iñaki Williams and Nico Williams linking up, the squad still lacks a clinical finisher up top.

Arsenal have overhauled their game model since the English Premier League kicked off. Across the first four rounds, the team conceded only once and allowed just 2.31 xGA. Against Nottingham Forest (3:0), the team performed confidently without William Saliba — he was ably replaced by Yerson Mosquera. It is clear that without the injured Bukayo Saka, Kai Havertz and Martin Ødegaard, Arsenal’s chance creation will dip — new arrivals Noni Madueke, Viktor Gyökeres and Eberechi Eze are still finding balance together.

The home crowd in Bilbao, which has long awaited a return to the Champions League, will aid Athletic Bilbao. Arsenal will play in a low block and restrict the hosts’ clear openings, but injuries in attack will curb the visitors’ potential.

Betting prediction
Total Under 2.5
Cf
Odds
3/4
Bet now

Athletic Bilbao vs Arsenal Odds

Champions League: previous matches in the tournament

Athletic Bilbao
The team hasn't played a game yet this season
Arsenal
The team hasn't played a game yet this season

Team lineups

The line-ups will be known a few hours before kick-off
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