Question: What was the nickname of the boxer that lost to Tiger Flowers  in the World Colored Middleweight Championship on 26 November 1926?
Sentence (from "Harry Greb"): He fought against the best opposition the talent-rich 1910s and 20s could provide him, frequently squaring off against light heavyweights and even heavyweights. Widely considered one of the best fighters of all time, Greb was named the 7th greatest fighter of the past 80 years by the "Ring Magazine", the 5th greatest fighter of all-time by historian Bert Sugar and ranked as the #1 middleweight and the #2 pound-for-pound fighter of all-time by the International Boxing Research Organization.
Relevant evidence: No