By Andrew Holleran Olivia Dunne is ready for the 2022-23 LSU Tigers gymnastics season. The popular college athlete, who has millions of followers across platforms, shared a viral preseason video on TikTok earlier this week. Dunne is ready to go. “Pre-szn grind😼,” Dunne wrote. View the original article to see embedded media. The video has more than 3 million views on TikTok. Dunne is absolutely massive on the platform. “Hope your season goes great livvy,” one fan wrote. “Going to one of the meets this year😁,” one fan added on social media. “Livvy I know your on that grind for winter but you got…