Earlier this year Luke also paid a public tribute to Mickayela and newborn daughter Frankie, with three gestures on the field after making his first try of the Warriors season.
The first one was to make the letter 'M', the second was as if he was rocking a baby and he blew a kiss with the third.
At the time, his wife was in hospital with the couple's newborn baby.
"This last week has been tough for our little family," the 28-year-old Luke wrote.
"But am proud to say that our little angel is getting better.
"M representing my wife@mickayelaluke who has been the ultimate souljah in being next to our little angel all week in hospital.
"I am in awe of the special things you do for our babies. And the baby cradle is my lil angel. Daddy will be home soon to get some cuddles from you."