Updated at 7:11 p.m.
They say recruiting is never over until it's over.

With Brewster Academy power forward Mitch McGary, it's officially over.

McGary announced via Twitter this morning that he's signed his letter of intent to play basketball for coach John Beilein and the Michigan basketball program next season.

"Just signed my LOI!! #GoBlue," McGary tweeted at around 9:45 a.m. Wednesday morning.

McGary is rated as the country's top power forward and No. 2 prospect overall by ESPN.com. He gave Michigan his verbal commitment during a live ESPNU broadcast last week.

Beilein made McGary's signing official Wednesday with a released statement welcoming him to the Wolverine basketball program.

"Mitch possesses a unique blend of size and skill with a motor to run, rebound and compete, which will serve him well at this level of college basketball," Beilein said. "He initiates contact inside while being very comfortable on the perimeter with the ball.

"Mitch loves the University of Michigan and loves playing basketball and will bring energy and enthusiasm to our team."

Wednesday marks the opening of the week-long early signing period, offering the first chance for 2012 recruits to sign their letters of intent.

Also on Wednesday, Beilein officially announced the signing of Lake Central (Ind.) High School small forward Glenn Robinson III.

A four-star prospect according to both Rivals and Scout.com, Robinson III (the son of former Purdue star Glenn Robinson) is Rivals' 34th-rated player for 2012, and Scout's 38th-rated prospect.

"Glenn has a passion and devotion to the game of basketball that has driven his development significantly over this past year," Beilein said in a statement. "He is first and foremost a great teammate and is very coachable.

"The combination of his explosiveness and unselfishness, along with his expanding skill set makes him a perfect fit for Michigan Basketball."

With McGary and Robinson now signed, Michigan will now wait for St. Mark's (Mass.) shooting guard Nick Stauskas.

Stauskas said via Twitter earlier this week that he intends to wait for a signing ceremony at his school on Friday.

With McGary, Robinson and Stauskas in tow, ESPN.com has rated Michigan's 2012 class at No. 6 in the country, while Scout.com ranks it at No. 7.

Nick Baumgardner covers Michigan basketball for AnnArbor.com. He can be reached at 734-623-2514, by email at nickbaumgardner@annarbor.com and followed on Twitter @nickbaumgardner.