Mayweather vs. Ortiz Results: Live Round-by-Round Updates and Recap

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Floyd Mayweather Jr. puts his undefeated record on the line against world champion Victor Ortiz on September 17 in Las Vegas, Nevada, live on HBO pay-per-view.

The 24-year-old welterweight world champion Ortiz (29-2-2, 22 knockouts) is carrying the pride of Mexico proudly on his back as he goes into the biggest weekend of his life.

The 34-year-old Mayweather (41-0, 25 knockouts) is coming back from a 16-month hiatus this Saturday. His last big boxing event was May 1, 2010 against Sugar Shane Mosley (46-7-1, 39 knockouts).

Ortiz is coming off the most impressive performance of his career in a hard-fought unanimous decision victory over former undefeated world champion Andre Berto (28-1, 22 knockouts).

Many big questions arise when looking into this matchup.

Will Mayweather be rusty at age 34 after such a long layoff?

Will Ortiz be able to continue the furious pace he's set against many of his opponents, especially against a defensive genius such as Mayweather?

Will the youth, determination and strength of Ortiz dethrone the experience, domination and agility of Mayweather?

This analysis will cover the most up-to-date prefight stories and war of words between training camps as these two warriors prepare for their clash on September 17 on live HBO PPV.