Walker pitched for the Tigers last year, but did not name the baby after his old boss.
The lad is actually named after Jamie's dad, James Walker, and his wife Natalie's grandfather, Leyland Estes.
"They both fought in World War II and the baby was born on Memorial Day," Walker said. "We both liked the name, so we thought what the heck."
He knows everyone will assume he named his son after his former manager.
"I'll catch a lot of flack for that. But that's fine," he said. "Jim Leyland's a good man. My wife loves Jim Leyland, loves the guy to death. He's a great manager and a great guy. If people want to think we named the baby after him, let them."
I'm so glad my dad wasn't named Frank and my grandfather wasn't named Robinson.