T.J. Watt and his wife, Dani, announced the birth of their first child, Blakely Marie Watt, on Monday.
The news was shared in a joint Instagram post on both parents' accounts, featuring six black-and-white photos of the baby girl.
Watt's former Pittsburgh Steelers teammate Russell Wilson and Las Vegas Raiders defensive end Maxx Crosby were among those to offer well-wishes, as was Blakely Marie's uncle J.J. Watt.
"Welcome to the world Blakely!!!!!" the older Watt commented.
T.J. and Dani announced a child was on the way in a post last September. The pair were wed in September 2022.