ANN ARBOR -- After a summer of transition, Drake Harris is back on offense.

The fourth-year junior is working at wide receiver this week, head coach Jim Harbaugh said Tuesday, a move that adds another pass-catching option to Michigan's sputtering offense.

Harbaugh, speaking on the Big Ten coaches' teleconference, indicated Harris is healthy again after continued hamstring flareups. He's appeared in just one game this season.

"Yes, yes," Harbaugh said, confirming a Tuesday morning report by Scout.com's Sam Webb. "We moved him back to offense, at receiver."

The 6-foot-4, 188-pound Harris began the season at cornerback, a move executed in spring to help accentuate his speed, range and athleticism. At the time, Michigan, with a talented group of freshman coming in at receiver, thought there might be a larger need in the defensive backfield.

But things have changed through five games, with the Wolverines' pass defense ranked second nationally and passing game lacking consistent, reliable options at receiver. With Tarik Black out indefinitely to heal a broken foot, Grant Perry is the only active wideout on the Michigan roster with more than 100 yards receiving.

"We've got to get more receivers involved, catching the ball," Harbaugh said Monday night on the "Inside Michigan Football" radio show. "Really, Grant and Sean (McKeon) have been catching a lot of balls."

Michigan (4-1, 1-1 Big Ten) has instead come to rely on its tight ends, especially McKeon and sophomore Zach Gentry, for pass-catching production. Tailbacks Karan Higdon and Khalid Hill also caught passes in Saturday's 14-10 loss to Michigan State.

A former four-star prospect, Harris set receiving records at Grand Rapids Christian High School before injuries plagued him. He caught 91 passes for 2,016 yards and 23 touchdowns his junior year.

Hamstring issues forced Harris to sit out his freshman season at Michigan, then limited him again as a sophomore in 2015. He played in 11 games last season, catching just two passes for 11 yards, but was never a big part of the offense.