Yann Sommer is the best goalkeeper in the UCL this season based on stats.

In the summer, Inter lost Andre Onana, a goalkeeper who performed exceptionally well. As a replacement, they acquired Yann Sommer from Bayern Munich for just €6.75 million, and he has demonstrated his qualities from day one. In Serie A, he is the goalkeeper who has conceded the fewest goals and has the highest save percentage. He has carried these statistics into the Champions League, where he boasts an impressive save percentage of 90%, the highest among all goalkeepers.

Goalkeepers with the highest save percentage in UCL: 
◉ Yann Sommer (90.0%)
◉ Nick Pope (83.3%)
◉ Alex Remiro (83.3%)
◉ Manuel Neuer (83.2%)
◉ Gregor Kobel (81.8%) 

He has kept three clean sheets, which is only surpassed by Real Sociedad's Alex Remiro, who has four clean sheets. When looking at the number of match-winning saves, Yann Sommer is also among the leaders.

Sommer has played five Champions League matches in the season, conceding only 2 goals. In the most recent match that he was spared, Inter conceded 3 goals. So, along with Remiro, Sommer is the goalkeeper who has conceded the fewest goals in the tournament.

Yann Sommer Champions League stats 2023/24: 
◉ 5 games
◉ 18 saves
◉ 3 clean sheets
◉ 20 shots
◉ 90% save percentage

Sommer holds significant importance for Inter's further journey in the tournament. They have built a solid defense, and when you have a goalkeeper who plays a crucial role, the chances of progressing far in a cup competition are greatly enhanced.