4 commands that you must teach your dog,no,come,leave it and stay.They may save its life one day.Any dog can be broken from chasing game once these commands are taught.You must anticipate what your dog is going to do next and make the correction before he acts.My girl is rarely on leash and I can stop her from a full run with just a voice command.If you cant do this with your dog please dont let it off leash in a public place,for the dogs sake.Thats a great looking pup Lazlo,most doga that are that breed are too fat,good to see a trim one.
Joe