Something to keep in mind is that these types of injury happen all the time during the season and players will play right through them. In training camp that would be an obviously silly thing to do given the risk/reward ratio, so they sit out and the injuries become stories rather then being silenced with anti-inflammatories and aspirin.
The nicks, bruises, swelling, and sprain can be overlooked. It's the tears and broken bones that we should be afraid of. If we come out of this off-season with only joppru facing a 'serious' injury we will have been fortunate.