Clash of the Titans was on full display when the Philadelphia 76ers and the New York Knicks went head-to-head in a grueling six-game series.

The combination of two storied rival fan bases and a chance to advance to the next round had Knicks and 76ers fans on their worst behavior Thursday night.

After the game six victory by New York, fans made their way outside of the Wells Fargo Center, and tempers were still flaring.

One 76ers fan and a Knicks fan were being separated from fighting by security. That did not completely stop them from engaging in violence.

The two of them decided to settle things with an old-fashioned Oklahoma drill. For those unaware, the Oklahoma drill is a technique used to test players in confined full-contact situations.

The one 76ers fan and Knicks fan both slightly kneeled down and went at it before the much bigger 76ers fan knocked the Knicks fan into a nearby plant, which ended the altercation.

New York advanced past the Philadelphia on Thursday.

All-star point guard Jalen Brunson led his team to a 118-115 win in Game 6, ending the series with a 41-point performance, per ESPN.com.

New York will now face the Indiana Pacers, who put away the Milwaukee Bucks earlier Thursday, in the Eastern Conference semifinals. During the regular season, the Pacers and Knicks met three times, with Indiana winning two of those games.

New York Knicks Hoping To Get To Conference Finals For The First Time in 25 Years

New York Knicks and Philadelphia 76ers fans (Photo by Tim Nwachukwu/Getty Images)
The conference semifinals are taking shape. New York is headed to face the Indiana Pacers, as they have a legitimate shot at getting to the third round.

Should the Knicks do that, it will be the first time since the 1999-2000 season.