Greetings race fans. It's Daytona 500 day.
When the green flag drops at 3:18 p.m. today at Daytona, here are some storylines to watch. 

Team alliances
How much will teams work together, if situations on track allow for them to do so? I foresee this being a major strategy, once again, for Chevy, Ford and Toyota. But history has shown the best plans usually are interrupted by the reality of plate racing. Those alliances usually don’t last, especially after cars get knocked out after big wrecks. We’ll see how this plays out and how much it determines the outcome of the race.

Blocking
Brad Keselowski and others have expressed concern about blocking and the major wrecks it is causing this Speedweeks. How much will drivers take that into account when they are making decisions as they battle for the lead and through the field? Hopefullly cooler heads will prevail, but when chasing the checkered flag common sense often goes out the window. We’ll learn this afternoon which side wins out.