NBA things to know: As season begins, Celtics chasing Spurs for all-time best record
flag wire: true flag sponsored: false article_type: pubinfo.section: cms.site.custom.site_domain : thestar.com sWebsitePrimaryPublication : publications/toronto_star bHasMigratedAvatar : false firstAuthor.avatar : By Tim Reynolds The Associated Press The Boston Celtics enter this season…