Recurrent Hamstring Injury: Lessons from Szoboszlai

Dominik Szoboszlai experienced another hamstring problem during the match against Brentford, shortly after he had already missed a game because of earlier symptoms. The case offers an important lesson not only for professional football but also for amateur athletes: after a muscle injury, time spent resting alone does not determine whether it is safe to return.

Without a precise medical diagnosis, no responsible conclusions can be drawn about what caused the recurrence. The case should therefore not be treated as an individual diagnosis, but as an illustration of why hamstring injuries and the subsequent return to activity require particular caution.

What happened after his return?

According to Telex’s report, there was no visible problem with Szoboszlai’s movement early in the match, but he later injured his hamstring again and had to be substituted. The publication described the incident as a recurrence of the previous injury.

Based on an earlier report by 24.hu, the player missed the match against Manchester City because of excessive workload and a hamstring strain following his international appearances. The same report also quoted the Hungarian Football Federation’s response, which stated that Szoboszlai had been subjected to a significant workload while on international duty but had not returned to England injured.

According to HVG’s report, head coach Andoni Iraola believed that this was not an entirely new injury, but a recurrence of the previous problem, and that the recovery had probably not been fully completed. This is a coach’s assessment rather than a detailed medical report released to the public, so it cannot by itself establish the type or severity of the injury.

Why is the hamstring vulnerable?

The hamstring is not a single muscle but a group of muscles located at the back of the thigh. It performs several functions during running: it helps move the hip, bends the knee and slows the leg as it swings forwards. During high-speed running, it can therefore be subjected to substantial force within a short period.

According to a review of the literature available on PubMed, recurrence is a particularly important clinical issue in hamstring injuries. A previous injury is therefore not merely a closed chapter: it is a factor that must also be considered when planning later training and the return to sport.

Rebuilding load tolerance is complex because there can be a considerable difference between pain-free everyday movement and the intensity of a match. Walking, light jogging or even a controlled training session does not necessarily replicate full-speed sprinting, sudden deceleration and changes of direction.

Return is not determined by the calendar alone

According to the professional consensus statement titled London International Consensus on Hamstring Injuries, published in the British Journal of Sports Medicine, assessment of readiness to return to play should be based on clinical and functional criteria, not solely on elapsed time. In practice, this means it is not enough to establish that an athlete has rested for a given period and no longer feels pain.

The assessment may include examining muscle strength, range of motion and sport-specific tasks, followed by a gradual increase in running load. For footballers, it may be particularly important to assess how the body tolerates acceleration, high-speed running, deceleration and repeated sprints. Interpreting individual tests is the responsibility of a sports doctor or physiotherapist.

The absence of pain is an important sign, but it is not the same as full functional recovery. The muscle must not only perform a single movement without symptoms, but also withstand repeated and unpredictable loads under fatigue.

Not all hamstring injuries are the same

The location of the injury and the type of tissue involved can influence the course of rehabilitation. According to the British Journal of Sports Medicine overview of the BAMIC classification, injuries involving the intratendinous tissue may be associated with longer rehabilitation and a greater risk of recurrence.

Anatomical classification requires imaging and expert assessment. In Szoboszlai’s case, it would not be appropriate to speculate about exactly which tissues are affected, so an individual prognosis or return timeline cannot be calculated from a general category in the literature.

Reports on the expected length of his absence were also inconsistent. According to HVG’s report, the coach discussed the possibility of a longer spell on the sidelines, while other media reports suggested a shorter absence. Without a detailed diagnosis and knowledge of how the condition develops, neither expectation can be regarded as a reliable medical forecast.

What does gradual rehabilitation mean?

The Amsterdam UMC literature review examines several components of rehabilitation and prevention together. The modern approach does not rely on a single “miracle exercise”, but on systematically rebuilding muscle strength, movement coordination and the loads experienced during running.

This may include eccentric strengthening, in which the muscle lengthens while under tension. The hamstring also works in this way during high-speed running, so controlled eccentric exercises can play an important role. However, the appropriate exercise, resistance and frequency must be adapted to the athlete’s current condition.

Developing the entire movement chain may also be important. The function of the muscles around the trunk, pelvis and hips affects how load is distributed during running. Rehabilitation is therefore generally not limited to isolated strengthening of the back of the thigh.

What can amateur athletes learn from this?

The circumstances of elite and recreational sport differ considerably, but the underlying principle is similar: the first pain-free training session after time away does not necessarily mean that an athlete is ready for full load. Particular caution is advisable if the symptoms occurred during fast running or if the same area has been injured before.

• Load should be increased in stages: from easy running through faster intervals to changes of direction and tasks specific to the sport.
• It is worth monitoring the response carefully: what matters is not only any symptoms felt during training, but also how the area responds afterwards.
• Preventive strengthening should be regular: occasional exercises are no substitute for a consistent programme.
• Recurrent pain warrants assessment: a sports doctor or physiotherapist can tailor the diagnosis and rehabilitation to the individual.

Load management does not simply mean getting more rest. With too little stimulus, the tissue does not prepare for match-like demands, while increasing the load too quickly may exceed its current capacity. Achieving the right balance requires gradual progression, consistent feedback and professional supervision where necessary.

The key lesson

Without detailed medical findings, Dominik Szoboszlai’s case cannot reveal exactly what caused the recurrence or how much time is needed for a full recovery. Nevertheless, it clearly shows that returning to the pitch is not a single date but a process involving several stages.

Reduced pain, restored strength, gradually increased sprinting loads and assessment of sport-specific movements can together provide a picture of load tolerance. In cases of recurrent or sudden thigh pain, general information is no substitute for an in-person sports medicine assessment and individualised rehabilitation.