Cook the rice in boiling salted water for about 8 minutes. Fry the legs in 1 teaspoon of hot oil while turning for about 10 minutes. Season with salt and pepper and take out. Deglaze the meat with orange juice and sour cream, let it boil down.
Chop the celery. Cook in boiling salted water for about 5 minutes, drain. Remove seeds from tomatoes, cut flesh into slices. Swivel vegetables in the rest of hot oil. Season with salt and pepper.
Arrange legs on vegetables and rice. Serve with extra sauce.