Kylian Mbappe, Real Madrid's star forward, is facing potential exclusion from the Champions League match against Benfica due to a knee injury that has plagued him for several weeks. Despite his impressive scoring record this season, netting 38 goals in various competitions, his fitness has become a significant concern, with reports indicating that he has been effectively 'playing on one leg'.

Real Madrid, who hold a narrow 1-0 advantage from the first leg against Benfica, could find themselves without their key player as manager Alvaro Arbeloa contemplates the implications of fielding a compromised Mbappe. Club medical staff have raised alarms regarding his condition, making his participation in the upcoming match uncertain. This injury presents a critical juncture for the team, especially as they aim to solidify their position in the Champions League.

If Mbappe is ultimately unable to play, Real Madrid will face a tough challenge as they look to advance in the tournament without one of their most prolific scorers. The situation underlines the balance teams must maintain between managing player fitness and competing at high levels, especially in crucial matches that could define their season.