NASCAR Accuses Ryan Newman's Team of Doctoring Tires

The driver and his team are accused of letting air out of their vehicles' tires in order to gain an advantage.
2:21 | 04/01/15

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Transcript for NASCAR Accuses Ryan Newman's Team of Doctoring Tires
And now to NASCAR's defleetgate. The sport cracking down on one of its top drivers, Ryan Newman and his team accused of cheating by letting the air out of the tires and face a tough penalty and Ryan smith is here with all the details. Good morning. Good morning, Lara. It's an issue some say threaten to dog NASCAR this season. Drivers allegedly manipulating tires to gain an competitive edge. One team has been caught and NASCAR is hanging them out to dry. Ryan Newman is going to get in with that move. Reporter: This morning NASCAR flagging one of its top racing teams for cheating. The racing association Tuesday docking driver Ryan "Rocket man" Newman 75 crucial sprint cup points fining his crew chief $125,000 and suspending three members of his crew for deflating his tires during this race last month where he finished fifth. The penalty dropping Newman from sixth to 26th in the race for NASCAR's biggest prize, the sprint cup. Overnight Newman's team telling ABC news "We understand the seriousness of the penalty" adding they've been outspoken against tire bleeding and vowing to conduct an internal investigation. All niece NASCAR has been concerned about it poking minuscule holes in tire to release air improving durability and helping drivers achieve that ideal grip on the track. A concern that superstar Jeff Gordon raised on Friday. I've heard about a lot of things, you know, with valve caps and poking holes in tires for years. Reporter: NASCAR's seized tires from eight of its track leaders during a two-week period and NASCAR officials told ABC news tire inspections are frequent and not unusual. Now those racer tires have come back clean except for Newman's. NASCAR telling ABC news overnight "We've been very clear that any modifications to race vehicle tires is an unacceptable practice and will not be tolerated." Newman's team hasn't yet decided whether they will appeal but NASCAR's decision seems quick in comparison to another sport facing deflation issue, the NFL is still investigating those allegations of deflated football. What's taking so long? They're working on a report. That's all I can say. Thanks very much.

This transcript has been automatically generated and may not be 100% accurate.

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