Buzzing on Yahoo Sports:

Mayweather-Guerrero live chat and analysis

Pound-for-pound kingpin Floyd Mayweather Jr. puts his undefeated record on the line Saturday against Robert Guerrero. Follow along live as Yahoo! Sports boxing analysts Kevin Iole and Martin Rogers break down all of the action from ringside at the MGM Grand Garden Arena.

Follow @YahooSports on Twitter for more in- and post-fight analysis.

More Floyd Mayweather-Robert Guerrero coverage:
Perfect in the ring, Floyd Mayweather Jr. works on his personal life
An inside look at Floyd Mayweather Jr.'s mindset as he preps for Robert Guerrero
Floyd Mayweather Jr.: Behind the police report
Watch: What you may not know about Floyd Mayweather

Win cash prizes, pick a fantasy roster for just one day, join in minutes!

Learn how to play

Contest Entries Entry Fee Prizes Starts (EDT)
NFL $350K Baller [$50K to 1st] 13722/39773 $10 $350000 Sunday 1:00 PM Enter
NFL $40K Tournament [Single Entry] 2905/9091 $5 $40000 Sunday 1:00 PM Enter
NBA $6K Tournament [$600 to 1st] 387/6818 $1 $6000 Tomorrow 7:00 PM Enter