My 2-year old GR, Gracie, let out a big yelp this morning while playing ball. She was propped up on her front legs after that. I ran over to her and she got up but was unable to put any weight on her left rear leg. I'm of course very fearful of hip dysplasia but I no longer think that's the issue. I'm of course going to take Gracie to the vet if her condition doesn't improve by this afternoon. She doesn't seem to be in any pain but can't put her paw on the ground as if her leg won't extend fully. After talking to a fellow GR owner she had a dog that hurt her ACL and Gracie's symptoms sounding exactly like what she went through. I can grab Gracie's whole leg and paw and she doesn't seem to be bothered by it. Seems like dysplasia would cause pain and Gracie wouldn't be able to get around as well as she is. She's just acting like she's 3-legged. Any guesses?