Detroit (Mich.) Cass Tech four-star cornerback Donovan Johnson announced his verbal to Penn State, Tuesday evening.

With the U.S. Army All-American cornerback in the fold, the Nittany Lions jump two spots to No. 15 in the 247Sports Recruiting Rankings, including passing Maryland for the No. 3 class in the Big Ten.

The 5-foot-10, 176-pound Johnson chose to play for James Franklin, Tim Banks, Terry Smith and company over his other finalist Virginia Tech.

Johnson says it went down to the wire.

“For the last month I’ve been trying to separate them,” he said.

The Nittany Lions got the last visit from Johnson this past weekend.

“It’s like family with me and the coaches,” Johnson said. “The coaches and I fit well.”

The industry-generated 247Sports Composite ranks Johnson as the nation’s No. 34 cornerback and No. 7 recruit overall in the state of Michigan. He is commit No. 17 for the Nittany Lions in 2017.

This summer at The Opening Finals held at the Nike World Headquarters, the 5-foot-9, 177-pound Johnson clocked a laser-timed 3.83 shuttle, marking him as the quickest player at an event with many of the nation’s top football prospects. His 4.35 40-yard dash was also the third fastest.

Johnson helped lead Cass Tech to a state championship this fall.