Match | Competitive or friendly match against another team |
Injury | Injury resulting from playing football and leading to a player being unable to fully participate in future training or match play (ie, time-loss injury) |
Hamstring injury | A traumatic distraction or overuse injury to the hamstring muscle leading to a player being unable to fully participate in training or match play |
Rehabilitation | A player was considered injured until team medical staff allowed full participation in training and availability for match selection |
Lay-off | Number of days until the player resumed full team training |
Re-injury | Injury of the same type and at the same site as an index injury occurring no more than 2 months after a player's return to full participation from the index injury |
Minimal injury | Injury causing absence of 1–3 days from training and match play |
Mild injury | Injury causing absence of 4–7 days from training and match play |
Moderate injury | Injury causing absence of 8–28 days from training and match play |
Severe injury | Injury causing absence of over 28 days from training and match play |
Traumatic injury | Injury with sudden onset and known cause |
Overuse injury | Injury with insidious onset and no known trauma |