Roethlisberger posted the news about Benjamin Jr. on his website Thursday.
Roethlisberger says his wife, Ashley, gave birth to their first child Wednesday at 10:06 p.m. The boy weighed 7 lbs., 1 oz. and is just over 19 inches long.
The quarterback says mother and baby are doing well and adds: "We want to thank everyone for their thoughts and prayers, it really means a lot to us. God is so good!"
Teammate Max Starks said the quarterback seemed very excited -- and that he knows the feeling, since his first child, a girl, was born three weeks ago.
"I have no advice for him. I'm still working my way through it," the offensive lineman said with a laugh. "Just try and sleep when you can."
Roethlisberger says he'll have pictures to post this weekend.
Copyright 2012 by The Associated Press