Since then Patchell has yet to return to training, although he will begin the return to play protocol next week, ruling him out of a trip to the GUINNESS PRO12 league leaders.
And John believes the best thing for his player is to ensure he is not rushed back into action after suffering such a hefty blow.
"Rhys hasn't come back to training yet, but he is set to start the return to play protocols next week," John told Wales Online.
"He's had a severe knock and we are taking our time and making sure he is OK before we start his return.
"He is back in the environment and he feels good and is about smiling and with the boys, but we have a process that we will follow for Rhys and we have decided to push that back a week.
"It's about the player's safety and Rhys has got to feel comfortable coming back to play.
"Rhys is a young boy and when you have a big knock like that he has got to be happy to come back and play.
"We have excellent medical staff here and they always do what is right for the player. They work in conjunction with the player and we all know where we stand. It's been managed really well."
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