Alfonso Ribeiro's wife is expecting their second child.

The 43-year-old star - who scored four nine out of 10s for his rhumba with partner Whitney Carson on the dancing show - told presenter Erin Andrews: "My son, it's his first birthday here today.

"I'm happy that he is here with me. And as a wonderful present, my wife and I decided to get him a little brother or sister. So we're having a baby.

"I wanted to announce it here on the show, 'cause I just want to say thank you to all the fans and I love my wife."

Earlier in the episode, Alfonso's professional dance partner had said she was concerned about him picking up groin and back injuries before accidentally hitting him in the stomach.

He then jokingly referred to his manhood by saying: "Well, hopefully this thing still works."

Presenter Erin quipped: "Well, apparently it still does."

Alfonso's newborn will be his third child as he also shares custody of his 12-year-old daughter Sienna with his ex-wife Robin Stapler, who he filed for divorce from in 2006 after four years of marriage.