HBO Laurent Duvernay-Tardif

Kansas City Chiefs offensive lineman Laurent Duvernay-Tardif already has a second career.

Would you believe he's a doctor? Duvernay-Tardif, a sixth-round draft pick in 2014, continued to pursue his medical degree during offseasons at McGill University in Montreal. He is believed to be the first active NFL player to become a doctor.

HBO's Real Sports takes a closer look at his story in its latest edition. Here's a peek: