Credit: Jason LaVeris/FilmMagic

He's a knock out!

Mike Tyson, 44, and his wife Lakiha "Kiki" Spicer Tyson welcomed a baby boy on Tuesday, their rep confirms to Named Morocco Elijah Tyson, their brand-new son was born at Saint Rose Dominican Hospital in Henderson, Nevada. The lil' champ weighed in at 8 lbs., 13 oz., and measured 19 inches in length.

"He is such a sweet and calm baby," Tyson's rep Tammy Brook tells Us. "Mike and Kiki are overwhelmed with joy to welcome their son to the Tyson family."

The couple wed last summer and have a two-year-old daughter, Milan. The former heavyweight king has five other children from previous relationships.

Tragically, in May 2009, his 4-year-old daughter Exodus choked to death after her neck was accidentally caught in the cord of an exercise machine.