James Jahnke

Detroit Free Press

Michigan football coach Jim Harbaugh says he's "attacking this pregnancy with an enthusiasm unknown to mankind."

Yes, Harbaugh says, his wife, Sarah, is expecting again. He made the announcement to reporters covering today's camp in Ann Arbor.

Harbaugh is 52. Sarah Harbaugh is 37. They already have two daughters and a son, and Harbaugh has three other children from a previous marriage.

Asked Saturday about Father's Day, Harbaugh told the Free Press: "It feels great. There's nothing I'd rather be defined than as a dad. People define us men in a lot of ways: doctor, lawyer, dentist, construction worker, teacher, coach. But being called a dad is the defining moment."

Harbaugh brings camp tour to his beloved in-laws

Mark Snyder contributed.