Jayson Tatum has surprised fans with his excellence on the floor for the Boston Celtics in his rookie year this season, and he revealed another big change in his life off the court this weekend.

Tatum posted on Instagram Saturday that he is the father of a newborn boy named Jayson Christopher Tatum Jr., and though the elder Tatum only spent one year at Duke last season, he left little doubt that his son will be a Blue Devil fan.

The younger Tatum could potentially be the crown jewel of Duke's 2036 recruiting class like his father was in 2016, but Father Time may be taking its toll on the Celtics star already. The 19-year-old did not practice Saturday due to a knee injury he suffered against the Philadelphia 76ers Thursday night, but he is expected to be back on the floor before long.

The 6-foot-8 small forward has not missed a game yet this season and is averaging 13.9 points and 5.5 rebounds per contest for the top team in the Eastern Conference.