Athletic Bilbao and Arsenal Clash in Champions League Opener

The prestigious Champions League returns with an intriguing encounter as Athletic Bilbao welcomes Arsenal to the iconic San Mames stadium on September 16, 2025. This first-round fixture, scheduled to kick off at 17:45, will be officiated by Lithuanian referee Donatas Rumsas. Both teams enter the competition with high expectations, as the Basque side aims to make their mark in Europe's elite tournament while Arsenal looks to build on their recent European campaigns and establish themselves as serious contenders.

As the Champions League group stage begins, Athletic Bilbao enters the competition positioned fourth in their group, while Arsenal holds the second spot. Neither team has accumulated any points yet, with this being their opening fixture in the tournament. For Athletic, a strong start at home could set the tone for their European campaign, while Arsenal will be eager to secure valuable away points to strengthen their position in the group. Both clubs understand the importance of early momentum in a competition where every point can prove decisive in determining who advances to the knockout stages.

Athletic Bilbao enters this Champions League fixture with mixed recent form, having won three and lost two of their last five matches. The Basque side suffered consecutive defeats in their most recent outings, falling to Deportivo Alaves (0:1 on September 13, 2025) and Osasuna (0:1 on September 4, 2025) without scoring. Prior to these setbacks, Athletic had enjoyed a three-game winning streak in LaLiga, defeating Real Betis (1:2 on August 31, 2025), Rayo Vallecano (1:0 on August 25, 2025), and Sevilla (3:2 on August 17, 2025). Arsenal, meanwhile, has won three of their last four matches, most recently dispatching Nottingham Forest (3:0 on September 13, 2025). Their only defeat came against Liverpool (1:0 on August 31, 2025), while they recorded impressive victories against Leeds United (5:0 on August 23, 2025) and Manchester United (0:1 on August 17, 2025).

Athletic Bilbao will be without key midfielder Benat Prados and star winger Nico Williams, both sidelined with injuries. Defender Inigo Lekue remains doubtful for the clash. Arsenal's injury list is more extensive, with Gabriel Jesus, Martin Odegaard, Bukayo Saka, and Kai Havertz all confirmed to miss the match. Additionally, defensive stalwarts William Saliba and Ben White, along with midfielder Christian Noergaard, are doubtful participants. Both managers have adjusted their formations accordingly, with Ernesto Valverde opting for a 4-2-3-1 setup while Mikel Arteta is expected to deploy his team in a 4-3-3 formation.