Arsenal Favorites as Champions League Semifinals Reach Decisive Second Legs

Key facts

• Arsenal and Atletico Madrid are tied 1-1 on aggregate after a penalty each in the first leg.
• Bayern Munich lost 5-4 to PSG in the first leg, a nine-goal thriller at Parc des Princes.
• Opta supercomputer gives Arsenal a 68.1% chance to reach the final and 35.8% to win the title.
• PSG have a 57.8% chance to advance to the final, while Bayern have 42.2%.
• Atletico Madrid have a 31.9% chance to reach the final but only 12.1% to win the competition.
• Bukayo Saka returned from injury and made his first start since March, scoring for Arsenal.
• Antoine Griezmann will leave Atletico Madrid at the end of the season to join Orlando City.

Arsenal Host Atletico Madrid in Tightly Poised Semi-Final

The UEFA Champions League semi-finals reach their decisive second legs this week, with Arsenal and Atletico Madrid locked at 1-1 after a tense first leg in Spain. Both teams converted penalties — Viktor Gyökeres for Arsenal and Julián Álvarez for Atletico — but the match was marred by controversy when a VAR review overturned a second penalty for Arsenal after an apparent foul on Eberechi Eze. Arsenal now host the second leg at the Emirates Stadium in north London, where they are favorites to advance. The Opta supercomputer gives the Gunners a 68.1% chance of reaching the final and a 35.8% likelihood of winning their first ever European Cup. However, Atletico Madrid, who eliminated Barcelona in the quarter-finals, cannot be discounted: they reached the final in 31.9% of simulations, though they won the trophy in only 12.1%.

Bayern Munich Face Uphill Battle After Nine-Goal Thriller

On Wednesday, Bayern Munich welcome Paris Saint-Germain to the Allianz Arena after a stunning 5-4 first-leg defeat in France. The match at Parc des Princes was an instant classic, with Khvicha Kvaratskhelia and Ousmane Dembélé scoring braces for PSG, along with a header from João Neves. For Bayern, Harry Kane, Michael Olise, Dayot Upamecano, and Luis Díaz found the net. PSG's 5-4 aggregate lead is fragile, but the defending champions are now favorites to advance. The Opta supercomputer gives PSG a 57.8% chance of reaching the final, while Bayern have 42.2%. Despite trailing in the tie, Bayern still top the Opta Power Rankings, meaning their chances could shift if they overturn the deficit.

Key Players to Watch in the Decisive Matches

Bukayo Saka is expected to be the decisive player for Arsenal after returning from a long injury layoff. He made his first start since March on Saturday and scored, snapping Arsenal out of a weeks-long funk. His ability to drive at defenses and create chances will be critical against Atletico's disciplined backline. Declan Rice's set-piece delivery and ability to drop deep to split the center backs also proved effective in the first leg. For Atletico, Antoine Griezmann is playing his final season with the club before joining Orlando City in MLS. He has extra motivation to lead his team to the final, having lost twice in the final against Real Madrid in 2014 and 2016. Julian Alvarez has been one of Europe's most reliable attackers all season and will be a threat. In the Bayern-PSG tie, Harry Kane is nearing a career-best season that could propel him into the Ballon d'Or race. Luis Díaz's outside-to-in runs troubled PSG in the first leg, while Michael Olise scored a stunning goal and has been in outstanding form. For PSG, Kvaratskhelia has been one of the game's most entertaining players for over a year.

Opta Supercomputer Predicts Arsenal as Title Favorites

The Opta supercomputer has updated its predictions after the first legs, with Arsenal now the favorites to win the Champions League. The Gunners have a 35.8% chance of lifting the trophy, ahead of PSG at 28.6%, Bayern Munich at 23.5%, and Atletico Madrid at 12.1%. These probabilities are based on thousands of simulations and reflect the current state of the ties. Bayern were narrow favorites before the first leg but dropped after their loss. However, if they advance past PSG, their chances would likely increase significantly given their high power ranking. The supercomputer's simulations show that Bayern reached the final in 42.2% of scenarios, while PSG advanced in 57.8%.

Stakes and Historical Context

The winners of these semi-finals will meet in Budapest, Hungary, for the final on June 1. For Arsenal, it would be their first Champions League final since 2006 and a chance to win their first ever European Cup. Atletico Madrid have never won the competition, losing in the final twice (2014, 2016), both times to Real Madrid. Bayern Munich are the defending champions, having won the title last season. PSG are seeking their first Champions League trophy, having lost in the final in 2020. The second legs promise high drama, with both ties finely poised and world-class attackers on display.

What to Expect in the Second Legs

Arsenal vs. Atletico Madrid is expected to be a tight, defensive affair, but the presence of high-caliber attackers like Saka, Gyökeres, Griezmann, and Alvarez could produce moments of brilliance. Arsenal's home advantage and the return of Saka give them the edge, but Atletico's resilience and experience in knockout ties cannot be underestimated. The Bayern-PSG match is likely to be another high-scoring encounter, given the attacking talent on both sides and the fragility of PSG's one-goal lead. Both teams will go full throttle, knowing they are one game away from the final. The atmosphere at the Allianz Arena could be a crucial factor for Bayern.

The bottom line

• Arsenal are favorites to reach the final (68.1%) and win the title (35.8%).
• PSG hold a 5-4 aggregate lead over Bayern Munich after a nine-goal first leg, with a 57.8% chance to advance.
• Bukayo Saka's return from injury could be decisive for Arsenal in the second leg against Atletico Madrid.
• Antoine Griezmann is playing his final season at Atletico before moving to MLS, adding emotional stakes.
• The winners will meet in Budapest for the final on June 1, with both Arsenal and Atletico seeking their first Champions League title.
• Bayern Munich still top the Opta Power Rankings despite trailing, indicating their potential if they advance.