Yes if a player steps on the out-of-bounds line than the player is out-of-bounds.
Line of scrimmage.
In association football, the ball must completely pass over the line: on is in.In American football and rugby football, any contact with the line makes the ball or player out of play: on is out.
the line of scrimmage
The ball is placed at the 2 yard line in the NFL and the 3 yard line in college football.
College football kicks off at the 35-yard line.
The line in front of the quarter back
defensive line
All football fields are 100 yards long from goal line to goal line
That line is called the line of scrimmage.
Line of Scrimmage
line of scrimmage
The 50 yard line.