Daniel Jacobs (born February 3, 1987) is an American professional boxer. He is a two-time middleweight world champion. Nicknamed the "Miracle Man," Jacobs' career was almost cut short in 2011 due to osteosarcoma, a rare form of bone cancer. He went on to make a full recovery after spending 19 months out of the sport, meanwhile recovering from severe operation-induced injuries generally perceived as crippling. As of September 2021, Jacobs is ranked as the world's eighth-best active super middleweight by The Ring magazine, and third-best by BoxRec. He is particularly known for his exceptional punching power, with an 82.8% knockout-to-win ratio, and is stylistically considered an all-around fighter with good movement and hand speed.