Tiger Woods has posted a video of him swinging a 9-iron in a golf simulator. His agent says the video was posted to rebut rumors on social media that he had taken a turn for the worse following two back surgeries last fall. Mark Steinberg of Excel Sports Management said Monday that the rumors were ridiculous. The video has a time stamp of today. It shows Woods, in shorts and golf shoes, taking one smooth swing accompanied by the words, "Progressing nicely." The rumors began with a Twitter account called "Secret Tour Pro" saying Sunday that Woods could no longer sit in a chair and spends most of the day lying down. Steinberg says there's still no timetable for his return. Woods has had three back surgeries in roughly 18 months.