Clarke says Reid, 31, is ruled out of tomorrowâ€™s derby against Aston Villa after seeing an old leg injury flare up after training.
But the Albion boss explained: "Steven picked up a fractured fibula â€” he played for 45 minutes with that broken leg at Arsenal. Heâ€™s come back and picked up another knock in the area.
"Itâ€™s not serious but he wonâ€™t play against Villa. We are trying to protect him from himself. I want to tell people about his strength of character. People always think he is injured. But he wants to play."