UFC 331 in Los Angeles features Pantoja vs Van rematch and Tsarukyan vs Ruffy

Los Angeles will host UFC 331 on September 19, with a flyweight title rematch and a high-stakes lightweight co-main event headlining what shapes up to be one of the most compelling cards of the year.

Flyweight champion Joshua Van puts his belt on the line against former champion Alexandre Pantoja in a rematch the summary describes as a chaotic first meeting. Van, just 24 years old and representing Myanmar, carries a 17-2 record and has been one of the most prolific strikers in the flyweight division, landing 8.84 significant strikes per minute at 56 percent accuracy. He stands five-foot-five with a 65-inch reach and trains out of 4oz. Fight Club. Pantoja, nicknamed "The Cannibal," is the number-one contender at flyweight and sits fourth in the pound-for-pound rankings. The 36-year-old Brazilian owns a 30-6 record and brings a well-rounded threat, averaging 2.8 takedowns per 15 minutes and one submission attempt per 15 minutes out of American Top Team. His 67-inch reach gives him a two-inch advantage over the champion.

The co-main event is scheduled for five rounds and features Arman Tsarukyan opposite Mauricio Ruffy, the seventh-ranked lightweight. Ruffy, 30, is a Brazilian finisher out of The Fighting Nerds with a 14-2 record and a 75-inch reach. He connects on 58 percent of his significant strikes, the highest accuracy figure of any fighter on this card, and stands five-foot-eleven.

Why it matters

• Van defending against the top-ranked contender gives the flyweight title picture immediate clarity
• A Tsarukyan-Ruffy five-rounder at lightweight carries significant ranking implications near the top of a loaded division
• Ruffy's finishing ability against Tsarukyan's all-around skill set creates a compelling stylistic contrast
• Los Angeles as the host city puts the card in front of one of the sport's largest domestic markets