Earnhardt, Jr’s car chief delivers his own daughter:

When you sign up to be the car chief for Dale Earnhardt Jr. ‘˜s #88 Hendrick Motorsports Chevrolet, there’s quite a bit of understood pressure that comes along with the job. Sometimes there’s even more pressure that comes along with being a husband, as Travis Mack learned early Wednesday morning. According to Mhis Twitter account, Mack, who heads into his second season as Earnhardt’s car chief under crew chief Greg Ives, delivered his own baby girl at 3:15 a.m. in his home bathroom. ‘I delivered my baby girl at 3:15 this morning in our bathroom! Amazing experience. #GodIsGood My Wife is so strong.’ Mack tweeted.(NASCAR.com)