The combine is a NFL workout and testing of the college player looking to become NFL player. It is held in Indianapolis every february, starts tomorrow thru Sunday. Each team gets to interview a number of players. Some of the tests include the infamous "Wonderlic" test, this tells us who in reality got thru college playing football, not by taking classes
The bench press, 225lbs as many reps as possible, position drills and my favorite the 40 yard dash.
The combine is invite only, Approx 400 ex college players are invited.