My dog has a knee problem so the vet told me to not fetch with him. Fine by me but it makes tiring him out all sorts of tricky. Training him for treibball at th

My dog has a knee problem so the vet told me to not fetch with him. Fine by me but it makes tiring him out all sorts of tricky. Training him for treibball at the moment as that's one of the few dog sports I've found that doesn't involve quick direction changes or jumping. Fingers crossed he'll take to it.