ULTIMATE Fighting Championship (UFC) heavyweight champion Junior Dos Santos will defend his title against Cain Velasquez in their second encounter on Sunday in UFC 155 at the MGM Grand in Las Vegas, USA.

Dos Santos, who knocked out Velasquez in just 64 seconds in their first meeting in November 2011, said that he considered Velasquez (10-1 win-loss slate) a very tough rival.

“For sure, Cain Velasquez is a great opponent,” Dos Santos (15-1 card) told sports website ESPN.com during the weigh-in press conference. “But I know how the fans like knockouts. So, one more is coming for you.”

Dos Santos, 28, tipped the scale at 239lbs. while the 30-year-old American Velasquez came in at 240lbs.

Velasquez, who scored a technical knockout against Brock Lesnar in 2010, to seize the UFC heavyweight crown expressed his excitement to redeem himself from his previous loss to Dos Santos, “Getting that rematch means everything to me,” Velasquez told Case Keeper of the Las Vegas Sun Fighting website. “I’m really motivated in this fight thinking about it for a year.”