Welcome to SportsNation! On Wednesday, we're going inside the boxing ring when Manny Pacquiao stops by to chat about the his fourth fight with Juan Manuel Marquez, scheduled for Saturday.

Pacquiao (54-4-2, 38 KO) takes on Marquez (54-6-1, 39 KO) for the second time in 13 months, with Pacquiao winning the last fight via close decision. MGM Grand Garden Arena in Las Vegas will host the bout, which will air live on HBO PPV starting at 9 p.m. ET/6 p.m. PT.

Pacquiao, who hasn't fought since losing a 12-round decision to Timothy Bradley in June, owns a 2-0-1 record against Marquez in their previous three fights, spanning the last eight years. He is No. 4 on ESPN.com's Pound-for-Pound rankings. Marquez chats Wednesday at 1:30 p.m. ET.

Send your questions now and join Pacquiao Wednesday at 1 p.m. ET!

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