I agree with this. I would call the vet though just to aprise them. With Scarlett there was a doberman who played far too hard and tore her open several times on her neck. I would clean the wound, put Bacitracin on it and butterfly bandage it. Since this always happened at night I would end up talking to the vet in the morning. His answer was always that I knew my girl best and to keep it clean, watch it and bring her in if I thought it warranted it. I also found that the cuts that were not stitched, didn't scar the way the stitched cuts did.
When the same dog ripped an 8" opening in her side that went down several levels, then we rushed to the evet. And then I wanted to kill the human who swore her dog didn't do it. Nope, it was the Jack Russel...