Welcome to SportsNation! On Tuesday, we're going inside the boxing ring when "Sugar" Shane Mosley stops by to chat about his WBC junior middleweight title fight on Saturday.

Mosley (46-7-1, 39 KO) takes on Saul Alvarez (39-0-1, 29 KO) for Alvarez's belt in a 12-round bout. The fight will be live from the MGM Grand in Las Vegas at 9 p.m. ET/6 p.m. PT on HBO PPV as a part of the undercard of the Miguel Cotto-Floyd Mayweather Jr. title fight.

Mosley, 40, will be fighting a man 19 years younger; he last fought in May 2011 when he lost via decision to Manny Pacquiao. Mosley has held world titles in threee different weight classes. Fans can follow him on Twitter: @SugarShaneM.

Send your questions now and join Mosley Tuesday at 3 p.m. ET!

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