Brakes a concern for today's race

There seems to be two main concerns I keep hearing about going into today's race, rain and brakes.

There is a chance of rain, so hopefully they'll be able to get the WHOLE race in, I hate it when they call it just because it's past halfway.

The other big concern seems to be brakes.  A lot of teams seemed to be concern coming into Martinsville and then reiterated their concerns after practice.  Dale Jr. even talked about it on RaceDay and said he's really concerned, they had brake and rotor problems and he said he's seen lots of broken rotors around the track and garage.

Another concern I have, even though there wasn't anything mentioned about it is the splitter cutting down tires.  I think they'll be more of an issue today than they were last week at Bristol.

Let's hope for a safe and rain free race.