And learned it very early.
"Probably since I could walk, as far as I know," said Crawford, a midfielder and defender for the Tar Heels. "My dad made a little goal out of PVC pipes when I was younger, and I would go and play with him."
He also spent a lot of time playing with his older brother, Andy, a former soccer player at Washington & Lee.
"Whether it was wrestling or soccer or any sport, we were always competing with each other," Crawford said.
And it is that competitive background that Crawford has carried into his college career.
As a defender, he places aggressive pressure on opposing forwards. Proof of that was evident after Crawford received a black eye during last Saturday's 1-0 win against Clemson.
Fellow defender David Stokes said it is also proof that Crawford will do whatever necessary to help the team win.
"He's not too vocal, he just leads by example," Stokes said. "He just does his job."
Along with Stokes, Danny Jackson, Chris Leitch and goalkeeper Michael Ueltschey, the defenders have allowed an average of 0.7 goals a contest.