The UFC’s return to Los Angeles has a co-main event.

Top-ranked middleweights Gegard Mousasi and Ronaldo “Jacare” Souza will lock horns at the Aug. 2 event.

The pair met previously in 2008 in the finals of the Dream Middleweight Grand Prix. Mousasi scored a stunning, first-round knockout of the Brazilian with a well-timed upkick. Since then, both fighters have gone on to capture Strikeforce gold, before making their way to the Octagon.

Mousasi made his UFC debut in early 2013, scoring a lackluster decision win over last-minute replacement opponent Ilir Latifi. The Dutch-Armenian then returned to the 185-pound division following knee surgery, but fell short against current No. 1 contender Lyoto Machida. Mousasi got back in the win column in May, submitting veteran Mark Munoz in the first round.

Souza, meanwhile, rides a six-fight winning streak. The grappling ace has won all three of his UFC appearances, submitting Chris Camozzi, knocking out Yushin Okami and, in his most recent outing, outworking Francis Carmont. The 34-year-old has tasted defeat just once since his prior meeting with Mousasi.

The Mousasi-Souza match-up could determine the next title challenger for the middleweight title, currently held by Chris Weidman.

UFC 176 takes place at the Staples Center in Los Angeles. The event will be headlined by a featherweight title rematch between champion Jose Aldo and challenger Chad Mendes. The night’s main card will air live on pay-per-view with the preliminary card being split between a broadcast on Fox Sports 1 and a stream on the promotion’s digital network, UFC Fight Pass.