As a Ravens rookie, Lamar Jackson had the NFL's worst fumbling habit. He should improve in 2019.

Seven years before he lost his starting job under center, Joe Flacco couldn’t hold on to the ball. In the second game of the Ravens’ 2011 season, Flacco fumbled. In their next game, two more fumbles. And another fumble the game after that, and after that, over and over, again and again. When