Recently I installed the SEO by Yoast for my wordpress blog. Now after I migrated to your plugin, all the articles that I publish get a video thumbnail in the google search although there is no video in it. Here is a link for your reference – http://imageshack.us/a/img337/8453/techarta.jpg
How Do I rectify this? Almost all the articles published on my blog are now having that video thumbnail whenever I Google it.