Al Davis' death, if nothing else, marks the end of an era. Controversial or not, Davis was without a doubt one of the most influential owners in not just pro football, but all of sports. His contributions to the game went far beyond owning a team and achieving success with it. On and off the field, Davis was a titan who had considerable impact in making the NFL the most profitable sports league in the world.

There are owners who made large sums of money - win or lose - from their sports franchises. There are those who became famous because their teams won multiple championships, such as Jerry Buss of the Lakers and Eddie DeBartolo of the 49ers. There are also those who became infamous because of persistent losing (Donald Sterling) or worse (Frank McCourt).

But rarer still are the owners who transformed their sport, both in terms of how the games are played and how business is done. They left behind legacies that will be celebrated long after they're gone. These are our Top 10 Most Significant Owners in Sports:

Also See: Top 10 Winningest Owners in Sports

Also See: Top 10 Most Despised Owners in Sports