NEW YORK — It’s been a knockout in Germany. Now Sylvester Stallone hopes a musical based on his boxing film “Rocky” will also be a hit on Broadway.

Producers said Sunday they plan to get “Rocky” up and punching at the Winter Garden by February following a successful debut in Hamburg last fall.

Based on the Oscar-winning 1976 film, the musical features a score by “Ragtime” veterans Stephen Flaherty and Lynn Ahrens, and a story by Thomas Meehan, who wrote “The Producers” and “Hairspray.”

The musical stays close to the film, which charted the rise and romance of amateur boxer Rocky Balboa. In the story, Balboa gets his shot against an undefeated heavyweight champion.