Zach and Julie Ertz are officially parents -- the couple just welcomed their newborn son, Madden!!
"One week with our sweet boy! Madden Matthew Ertz you are so loved," Ertz wrote on Instagram. "Beyond grateful to be your Dad. @julieertz and I can't even put into words how blessed we are to be your parents."
In the pic, Madden is wearing a cream-colored hat and appears to be resting peacefully, next to a name tag that shares the date (Aug.