How will Mbappé’s absence affect Real Madrid?

A notable tactical loss on a tight Champions League tie

Real Madrid will head into the second leg without one of their most influential attackers after the club confirmed he was left out of the squad with a sore knee. That absence comes with context: Madrid enter the return match holding a narrow 1-0 advantage, and they meet a Benfica side that has shown it can press and unsettle top opponents.

Immediate consequences

• Madrid lose an elite option in transition and finishing; his pace and one‑on‑one threat would normally stretch Benfica’s defense and create space for teammates.
• The team must reallocate attacking responsibility. Players such as Vinícius Júnior — already highlighted in coverage as a focal point — and others will be asked to carry more of the creative and direct attacking load.
• Benfica’s game plan will change; without the need to always account for him, they can compress lines differently and commit resources elsewhere on the pitch.

What to watch in the second leg

• How Madrid adjust their attack: Will they shift to more possession control, or try to be direct through alternate forwards and midfield runners?
• Benfica’s approach: With Madrid slightly weakened up front, the visitors can be bolder in pressing and targeting transitions.
• Set pieces and margins: In a tie decided by one goal, small moments — set plays, referee decisions, and defensive concentration — gain outsized importance.

Why it matters beyond one match

Dropping a top attacker for a knockout fixture affects both immediate qualification hopes and perceptions of squad depth. If Madrid advance without him, it will be a credit to their tactical flexibility; if Benfica overturns the deficit, the absence will be seen as a decisive factor in a high‑stakes tie.