Drain tomatoes; reserve liquid.
Melt butter or margarine in medium size saucepan.
Add celery, tomato liquid, salt, pepper, basil, and sugar.
Cover, simmer over medium heat about 15 minutes, or until celery is tender.
Add tomatoes; stir to blend, simmer 5 minutes longer.
Fresh, cooked tomatoes may be substituted for the canned ones.