Houston (CBS HOUSTON) – The Houston Texans are hoping that their number one wide receiver DeAndre Hopkins will be able to play on Sunday.

The wideout was diagnosed with a concussion after Sunday’s loss to the Carolina Panthers. He was able to get on the field on Friday for practice, but head coach Bill O’Brien said he still needs to finish passing the concussion protocol before he can be cleared to play.

“Now, he has to pass the test before he’s allowed to play, just standard protocol,” O’Brien said. “He practiced today, looked alright out there.”

It is a good sign that Hopkins practiced Friday, but that does not guarantee his participation in Sunday’s game. The concussion protocol is a series of different tests and milestones a player who is diagnosed with a concussion must pass before being cleared to play.