Overview

• Chelsea trail Barcelona 4-1 on aggregate and must achieve an unprecedented comeback to reach the final, as no team has overturned a three-goal deficit in the competition's modern era.
• Barcelona hold a perfect record in two-leg ties after winning the first leg, with 17 consecutive victories in such scenarios.
• Arsenal travel to Lyon down 2-1 on aggregate but are bolstered by the return of goalkeeper Daphne van Domselaar and defender Lotte Wubben-Moy from injury.
• Lyon, record eight-time champions, remain unbeaten this season in their domestic league and Champions League campaign, underlining the scale of Arsenal's challenge.
• Both English sides are seeking to defy the odds and secure a place in the final, with tactical adjustments, psychological resilience, and clinical finishing emphasized as critical factors.