Football practice started a week earlier this season. But that's hardly the only change you'll notice in the sport in 2018.

Here's a quick rundown:

The early start, which happened when the football committee opted to move to the NFHS calendar, in effect makes Week 1 of the season Aug. 24. Zero Week does not exist anymore. All teams can begin playing on Aug. 24 — in fact, all Class 5A teams must begin play that week.

... That's because the 5A playoffs have expanded to 24 teams. The top eight seeds will receive a first-round bye, with seeds Nos. 9-24 playing in the first round of the playoffs.

... As a result, the 5A teams do not have room for a bye week during the regular season. Therefore, they must begin play on Aug. 24 in order to play 10 games.

For the complete story, go to: