Athletes want to play their sport no matter the cost. They can tolerate pain and discomfort just to be out in the court, the field, the track, the course, or the pool. They hate being told that they have to stop because of an injury even if they know that this may be sage advice.
A sports physio will understand this more than a regular practitioner because they specialize in injuries and recovery among this population. Most are athletes themselves so they have the same desire to keep going. They try to do everything possible so that their clients can go on with training or competition.
With periodic appointments, physios can even help prevent common injuries by identifying weaknesses and prescribing strengthening exercises to correct imbalance. They will also make sure that stability and flexibility are at a good level to support the level of activity.