COLUMBUS, OH – SEPTEMBER 24: The opening kickoff takes place between Iowa and Ohio State during the first quarter on September 24, 2005 at Ohio Stadium in Columbus, Ohio. Ohio State defeated Iowa 31-6. (Photo by Harry How/Getty Images)The early signing period in college football begins tomorrow. The top uncommitted recruit in the nation is slated to announce his commitment on Wednesday morning.Lewis Center (OH) Olentangy Orange five-star defensive end Zach Harrison will choose between arch-rivals tomorrow. He is down to Ohio State and Michigan.The two programs have taken turns trending for Harrison’s services throughout his recruitment. Now, it looks like the Buckeyes are surging ahead.The latest predictions in Harrison’s 247Sports Crystal Ball have been for Ohio State. Right now, the Buckeyes have the overall lead over the Wolverines.The Crystal Ball isn’t the end-all, be-all, but it usually provides pretty good insight into which way a recruit is leaning.Harrison is the No. 1 player in Ohio and the No. 1 strong-side defensive end in the 2019 class, according to 247Sports’ Composite Rankings.He is also the fourth-ranked prospect in the country in the senior class.Stick with The Spun tomorrow for the latest on Harrison’s announcement.