All Black Aaron Smith became a father five days ago, but now he has to leave his young family behind as he heads to Japan for six weeks.
The 30-year-old halfback's fiancée Teagan Voykovich gave birth to baby Luka on August 28.
Smith has barely had the chance to get to know his son, but the World Cup is calling. The All Blacks will face Tonga in Hamilton this weekend before boarding a plane bound for Japan.
The World Cup runs from September 20 until November 2.
Voykovich posted an adorable photo of Smith cuddling Luka to her Instagram story, along with a heartbreaking caption.
"Saying goodbye to dad today at only five days old...by far one of the hardest things we've ever had to do," she wrote.
"You are so strong @aaronsmith_1112 the sacrifices you make for our little family never go unnoticed and we are so proud of you.
"I'm going to miss you so much (especially my pro night time nappy changer). We will be thinking of you every single day. See you in six weeks' time my love."
The post implies Voykovich may intend to travel to Japan with Luka to watch the final few games. It's still an awfully long wait for a father to see his firstborn son.
Join us from 2pm Saturday for live updates of the All Blacks v Tonga