Undefeated welterweight boxer Floyd Mayweather Jr. is all set to challenge his compatriot and WBC welterweight champion Victor Ortiz for the title at the arena on Sept. 17. Does vicious Victor have a chance against the powerhouse?

Mayweather Jr. is 41-0 all time, which includes 25 knockouts and 16 decisions. Even though Mayweather, who is 10 years senior to Ortiz, hasn't been in a fight in 16 months, the veteran is a -625 favorite, according to Bodog.com.

On the other hand, Ortiz is the current WBC World Welterweight Champion. Known for his aggressive style, Ortiz holds the distinction of having knocked down every opponent he has faced. He has 29 wins in his professional record that includes 22 knockouts. He has two draws and has been defeated twice.

It was on June 7, when Mayweather announced via twitter that he and Ortiz had an agreement to fight on Sept.17, 2011. The fight is for Ortiz's WBC Welterweight belt.

Undefeated

Undefeated welterweight boxer Floyd Mayweather Jr. (L) of the U.S. grabs the throat of his compatriot and WBC welterweight champion Victor Ortiz as they face off during an official weigh-in at the MGM Grand Garden Arena in Las Vegas, Nevada September 16, 2011. Mayweather will challenge Ortiz for the title at the arena on September 17. Photo: REUTERS/Steve Marcus
Undefeated

Undefeated welterweight boxer Floyd Mayweather Jr. of the U.S. flexes his muscles on the scale during an official weigh-in at the MGM Grand Garden Arena in Las Vegas, Nevada September 16, 2011. Mayweather will challenge his compatriot and WBC welterweight champion Victor Ortiz for the title at the arena on September 17. Photo: REUTERS/Steve Marcus
WBC

WBC welterweight champion Victor Ortiz flexes on the scale during an official weigh-in at the MGM Grand Garden Arena in Las Vegas, Nevada, September 16, 2011. Ortiz will defend the title against undefeated welterweight boxer Floyd Mayweather Jr. at the arena on September 17. Both boxers are of the U.S. REUTERS/Steve Marcus
Undefeated

Undefeated boxer Floyd Mayweather Jr. (L) of the U.S. and WBC welterweight champion compatriot Victor Ortiz pose during a news conference at the MGM Grand hotel-casino in Las Vegas, Nevada September 14, 2011. Mayweather will challenge Ortiz for the title at the MGM Grand Garden Arena on September 17. REUTERS/Las Vegas Sun/Steve Marcus