Rousey voted Best Female Athlete Ever

It seems nobody can beat Ronda Rousey - not even tennis superstar Serena Williams.The UFC women's bantamweight champion knocked out the 21-time Grand Slam singles champion in a fan poll on ESPNW.com for the title "Best Female Athlete Ever.".@RondaRousey tops @SerenaWilliams and wins our #BestFemaleAthleteEver bracket. http://t.co/N9GuX6ySoN pic.twitter.com/6Pvy6sDdQt— espnW (@espnW) September 14, 2015The final, which had more than 13,000 votes tallied according to ESPNW, concluded a 32-wom