By day, he dons a white lab coat. At the weekend, he terrorizes opposition teams in his bright red outfit.

Even Humphrey Kayange struggles to define himself. On his Twitter biography, he asks: “Rugby player/research officer or is it the other way around?”

On the other side, Kayange is a scientist with the Kenya Bureau of Standards.

Photos of the rugby ace surfaced online on Friday working at the lab, eliciting mixed reaction.

He retired from the national team in 2014 to focus on his career.

Here are the photos;