Man bad day my best four legged friend has suddenly become lame. He was chasing the lax ball yesterday with my 1 year old pup who he always outruns. I toss the ball turn around and then look back to see the pup coming back with ball first. Never happens... Here comes the old boy nine with his ball but on three legs. Keeps asking to play fetch but won't use both his legs. I am thinking ACl tear or dislocated hip. Man this is horrible this dog is like my first son. I have had his line for along time owned his mom she was put down at 14. Anyone ever have a experience like this with their dog. Cost of repair? He goes to vet today at 2.