Welcome to SportsNation! On Friday, we're going inside the boxing ring when Tommy Oosthuizen stops by to chat about his super middleweight fight this weekend.

Oosthuizen (21-0-1, 13 KO) takes on Brandon Gonzales (17-0, 10 KO) for on the undercard of the Gennady Golovkin-Matthew Macklin WBA middleweight title fight main event. MGM Grand at Foxwoods Resort in Mashantucket, Conn. hosts the bout, which airs at 9:45 p.m. ET/PT on HBO Boxing After Dark.

Oosthuizen ranks ninth on Dan Rafael's divisional rankings and, by being undefeated, is poised for a future title shot. The South African native is also ranked No. 6 by the WBC and is fighting for the fourth time in the United States.

Send your questions now and join Oosthuizen Friday at 2 p.m. ET!

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