Aston Villa and Belgium have been dealt a major blow after midfielder Amadou Onana suffered a serious ACL injury during Belgium’s 4-1 victory over the United States in the 2026 FIFA World Cup round of 16.

The 24-year-old was forced off just 21 minutes into the match after injuring his right knee while challenging for the ball against United States captain Christian Pulisic. Medical tests later confirmed the worst possible outcome, with Belgium announcing that Onana had ruptured the anterior cruciate ligament (ACL) in his right knee.

The diagnosis is expected to keep the midfielder out of action for between six and nine months, dealing a significant setback to both club and country ahead of the new season.

Belgium Confirm Onana’s ACL Injury

The extent of the ACL injury was confirmed shortly after Belgium’s victory, with team doctor Brahim Hacene describing the diagnosis as “devastating news.”

After receiving treatment on the pitch, Onana was unable to continue and limped off before later being seen using crutches while wearing a protective knee brace.

Medical examinations confirmed a complete rupture of the anterior cruciate ligament, one of the most serious injuries a footballer can suffer.

In an official statement, Dr. Hacene said Belgium’s medical staff had immediately consulted with Aston Villa to coordinate the next stage of the midfielder’s recovery.

The Belgian Football Association also confirmed that Onana will remain with the national team squad as they prepare for their World Cup quarter-final against Spain in Los Angeles.

What Is an ACL Injury?

An ACL injury affects the anterior cruciate ligament, one of the key ligaments that stabilizes the knee joint.

The ACL connects the thigh bone (femur) to the shin bone (tibia) and plays a vital role in controlling movement during running, turning, jumping and sudden changes of direction.

Footballers are particularly vulnerable because the injury often occurs during quick pivots, awkward landings or collisions.

In Onana’s case, the injury happened as he stretched to reach the ball ahead of Christian Pulisic, causing immediate pain in his right knee.

Complete ruptures almost always require reconstructive surgery followed by months of intensive rehabilitation before a player can return to competitive football.

Huge Blow for Aston Villa

The ACL injury comes at the worst possible time for Aston Villa.

Unai Emery’s side are preparing for another demanding campaign after finishing fourth in the Premier League last season and winning the Europa League.

Villa will also compete in the UEFA Champions League, making squad depth more important than ever.

Onana has become a crucial figure since joining the club from Everton in a £50 million transfer during the summer of 2024.

Last season he made 38 appearances across all competitions, contributing two goals while establishing himself as one of the Premier League‘s strongest defensive midfielders.

His physical presence, ball-winning ability and leadership have made him one of Villa’s most important players.

Losing him for much of the upcoming campaign creates a major challenge for Emery’s midfield plans.

Belgium Lose a Key Midfielder

Belgium’s World Cup campaign has also suffered a significant setback.

Although they comfortably defeated the United States to reach the quarter-finals, Onana’s absence leaves a noticeable gap in midfield ahead of their meeting with Spain.

The midfielder featured in all four of Belgium’s matches during the tournament.

He started the opening group game against Egypt before making substitute appearances in victories over New Zealand and Senegal.

Against the United States, he had been expected to play a central role before the unfortunate injury ended his evening early.

Belgium will now have to find a solution against one of the tournament favourites without one of their most influential midfielders.

Recovery Will Take Time

Every ACL injury follows a long rehabilitation process.

After surgery, players usually spend several months rebuilding knee strength, improving mobility and gradually returning to football-specific training.

Modern sports medicine has significantly improved recovery outcomes, allowing many players to return at the same level as before their injury.

However, patience remains essential.

Returning too early increases the risk of further damage, making careful rehabilitation the priority.

Villa and Belgium are expected to work closely together throughout every stage of Onana’s recovery.

Onana Faces His Toughest Challenge

At just 24 years old, Onana still has many of his best years ahead of him.

His career has progressed rapidly since leaving Everton, becoming a regular for Aston Villa while also cementing his place in Belgium’s national team.

The ACL injury represents the biggest setback of his professional career, but many elite footballers have successfully returned after similar injuries.

Advances in rehabilitation techniques have enabled players to regain full fitness and continue performing at the highest level.

The coming months will focus entirely on recovery rather than football.

Villa Fans Await Positive News After Onana ACL Injury

Aston Villa supporters will undoubtedly be disappointed by the timing of the ACL injury, especially with another demanding domestic and European campaign approaching.

While the club may now consider reinforcing their midfield options, their immediate priority will be ensuring Onana receives the best possible medical care.

For Belgium, attention now turns to their World Cup quarter-final against Spain.

For Onana, however, the focus shifts away from the tournament and towards the long road back to full fitness.

His World Cup has ended in heartbreaking fashion, but both Belgium and Aston Villa will hope the talented midfielder returns stronger after completing his recovery.