Hello, and thank you for using Petco Pet Education Center, formerly Petcoach. Poor Gracie! It’s tough to be certain of the severity of her wounds without examining myself, but fortunately those wounds don’t appear to be too serious from the photos. I think it’s unlikely that she’ll need stitches. However, bite wounds tend to get infected, so I would bring Gracie in to your vet when they open tomorrow, as they’ll likely want to start her on antibiotics. In the meantime, keep those wounds clean by gently washing them with warm soapy water (Dawn dish soap works well). I hope this helps and she feels better!