Ronda Rousey is The Champ... That's Why She's the UFC 157 Headliner (Dana White)
http//www.MMAWeekly.com/ There has been some controversy over UFC women's bantamweight champion Ronda Rousey headlining the UFC 157 payperview fight card in February. Some people believe that proven UFC fighters and former champions Lyoto Machida and Dan Henderson should have taken the top spot, but UFC president Dana White disagrees.
She's the champ. If you're the champion, you're the headliner. You're at the top of the card.