Sylvester Stallone is back in the boxing ring taking on Robert De Niro as they face off in the first trailer for “Grudge Match”. The story follows two aging local Pittsburgh boxers Billy “The Kid” McDonnen and Henry “Razor” Sharp, who never buried the hatchet after 30 years.

Screen Capture: Sylvester Stallon and Robert De Niro in the Grudge Match".

Screen Capture: Sylvester Stallon and Robert De Niro in the “Grudge Match”.

Each boxer scored a victory against the other during their glory days, but never got their opportunity for the final decisive match. Razor announced his retirement leaving the score unsettled after their second fight, till boxing promoter Dante Slate Jr. makes them an offer they can’t refuse to settle the grudge after 30 years.

Tweet: One of the first images released for "Grudge Match".

Tweet: One of the first images released for “Grudge Match”.

Tempers flare as the two veteran boxers unintentionally engage in a hilarious skirmish that instantly goes viral. The viral clip transforms their local grudge match into a must-see HBO event. Will they survive the training and make it to the ring to settle the score?

The boxing promoter is portrayed by Kevin Hart  and Jon Bernthal stars as The Kid’s son, B.J. Also supported by Kim Basinger and Alan Arkin, the film from director Peter Segal is set to be released on December 25.

It’s “Raging Bull” against “Rocky”, who do you think will win the fight?