On Tuesday Shaquille O'Neal posted a heartfelt remembrance to his late stepfather on Instagram. Aug. 15 would have been his stepdad's birthday.

Philip A. Harrison, a career Army sergeant, helped raise Shaq from a baby. He passed away on Sept. 10, 2013.

"R.I.P to this man who took in a lady in 1975 and raised her son in the "BRICK CITY" to become the most dominant big man ever, that's right I said EVER," wrote Shaq. "Love you SGT PHILIP ARTHUR HARRISON, wouldn't be no SHAQ IF IT WASNT FOR YOU. #happybirthdaydaddy #brickcitylegends #malcolmxshabazz #goarmy #missyoudaddy."

The post accompanied a photo of Shaq and his dad taken right after one of O'Neal's championship wins with the Lakers. Check it out up top.

Source: Instagram