By Jeff Gluck - USA Today

Kasey Kahne was yelling at Hendrick Motorsports teammate Jeff Gordon, talking some big-time trash.

"You wanna have some fun, 24?" he said loudly. "OK, let's have some fun."

"Oh, 5 wants to have some fun, huh?" Gordon replied. "We'll show him fun."

Is there bad blood between two of NASCAR's top drivers? Not in real life, but there will be in part of a new ad for Fox Sports 1 that was filmed Wednesday at Charlotte Motor Speedway.

The scenes were a small segment in a 90-second spot set to air during the Major League Baseball All-Star Game next month, the most extensive promotion yet for the new sports network that Fox hopes could eventually rival ESPN.

"In every way there is to quantify this, it's the biggest (commercial) we've ever done," said Robert Gottlieb, the head of marketing for Fox Sports. "We want to make a big splash with this. This is the cherry on the cake."

Fox Sports is using more athletes, locations, days on set and money to film the ad than anything in its past.

As part of the commercial, Kahne and Gordon smack talk and bump into one another on the track. Gordon gets to end up celebrating in Victory Lane, but Kahne said he...

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