Indeed, back in February, he posted a video of himself walking without the need for crutches for the first time. Now he is one step further along.
The defender took to Twitter today to post this video of himself running for the first time alongside the caption ‘cleared for running’.
And there were plenty of Celtic fans who were quick to congratulate him on the next step of his recovery, as they shared their messages of joy for the 28-year-old:
“Yess!! You’ll be fighting fit for the new season ahead. Big changes coming our way. Need you there to let the new crew know what it’s all about.”
Have Celtic missed Jullien this season?
Whether or not he will be back in time to get some minutes under his belt this season is looking unlikely with the Bhoys only having three games left, but hopefully he’ll be back up and ready in time to impress the new boss, whoever that may be, ahead of next season.