Human growth hormone testing is coming to the NFL.

After spending two years working out the details the league and NFL Players Association have tentatively agreed to terms for testing according to a memo sent to the players from the union.

A copy of the memo was obtained Tuesday by the Associated Press.

A positive test will result in a four-game suspension.

For Detroit Lions star players Calvin Johnson and Ndamukong Suh two of the league's most physically imposing and talented athletes this news couldn't come soon enough.

"It's cheating" Johnson said. "There's no (place) for that in our game."

Suh the remarkably trim 300-pound defensive tackle puts in countless hours at the gym during the offseason to hone his physique. He's irked that there might be players cutting corners to achieve similar results.