Milner-Skudder's new injury niggle is one of many that have plagued him since his test debut in 2015, when he starred en route to helping the All Blacks claim an unprecedented third World Cup crown in England.
The hot-stepping wing scored eight tries in eight test appearances that year, and won the inaugural World Rugby Breakout Player of the Year award.
However, a string of injuries since then has massively restricted his playing involvement at all levels of the game, with Milner-Skudder playing only five more tests for the All Blacks in the preceding three years following on from the World Cup.
He recently became an ambassador of an New Zealand Rugby campaign for mental health awareness in sports, referencing the significant toll his long list of injuries has had on him.
"I've been through 'a few' injuries, but this has easily been the toughest one – both physically and mentally," he said.
"However, I'm not ready to give up anytime soon, love a good challenge, and have so much love and support around me."
Milner-Skudder is set to join fellow New Zealanders Julian Savea, Liam Messam and Bryce Heem when he links up with Toulon ahead of the 2019/20 season later this year.
This story originally appeared on Rugbypass.com.