As a sports data analyst who's seen my fair share of goalkeeper blunders, I break down how Andre Onana's two critical mistakes allowed Lyon to snatch a dramatic 2-2 draw against Manchester United in the Europa League quarterfinals. From Almada's cheeky free-kick to Cherki's last-gasp equalizer, we'll examine the defensive lapses that turned what should've been a United victory into a frustrating stalemate. Get the cold, hard numbers behind United's recurring set-piece vulnerabilities.