"Jack Jr. will understand in 20 years," Harbaugh said. "He wants to win, too."

Harbaugh commended his wife on a "great job," adding that she deserved a "gold medal for timing." The couple's third child came 10 days early, and Harbaugh wasn't planning on skipping Sunday's opener at Green Bay.

The newest Harbaugh is named after his grandfather, Jack, who coached football for 43 years.