I found him, in the wrong paddock, with scrapes all over his legs and this on his left hind...
Right down to the bone, split the extensor tendon.
Vet obviously attended and spent 2 hours cleaning, stitching, removing the flap of skin and bandaging. Now begins the twice daily antibiotics and bute and the daily bandage changes.
No clean photos yet as it was well and truly dark by the time the vet left.
For such incredibly smart animals, they sure do stupid, stupid things sometimes.