Speedster Dijon Stanley of Granada Hills finally met his match

Secret revealed.

When Granada Hills high-speedster Dijon took off Stanley for a 90-yard touchdown run in the City Section Division I championship game last month, video showed a back judge who could keep up with Stanley.

It turned out that the back judge was pretty fast himself during his playing days.

It was 36-year-old Antoine Cason, a former star defenseman at Los Alamitos High and Arizona, who became the NFL’s first-round draft choice in 2008 and was once part of the Arizona 4×100 relay team in track and field.

Stanley is the city section champion in the 400-meter dash and went to Utah on a football scholarship.

From 2008 to 2014, Cason played for the San Diego Chargers, Arizona Cardinals, Carolina Panthers, and Baltimore Ravens.

Any high school football player who thinks they’re fast has to outrun the back judge first.