Each week, five randomly selected players on eight randomly selected teams will have less than one tablespoon of blood drawn as part of the test, according to a source who informed FOX Sports of the process. In the preseason, regular season and postseason combined, approximately 950 players will be tested. In the offseason, an estimated 385 tests will be conducted. The combined estimated total of 1,335 tests is more than three times the number conducted by Major League Baseball (40), though that makes sense given the larger roster sizes for NFL teams.
There will be no testing on game days.
The testing pool consists of players on the 53-man active roster, practice squad and reserve lists who aren't already subject to reasonable-cause testing, such as those with prior offenses. In the offseason, all 90 players on the roster may be tested.