10. Showing Up At A UFC Event While Negotiating With WWE
Brock Lesnar turned up at UFC 184, which saw Ronda Rousey defend her women's bantamweight title in record time, while in the midst of negotiating a new contract with the WWE. That did not sit well with WWE officials, and sent fans and media pundits into another wave of speculation as to the then-WWE champion's future. Of course, shortly before WrestleMania 31, Lesnar announced that he was retiring from MMA for good and re-signing with the WWE.