The statement presented is: Branch Rickey convinces the Montreal manager (Clay Hopper) to treat Robinson "fairly and correctly" by threatening to fire him if he doesn't it.
In the context of the question, the statement is True.
1. Branch Rickey was the president and general manager of the Brooklyn Dodgers.
2. He was a key figure in breaking the color barrier in Major League Baseball by signing Jackie Robinson, the first African American player in the modern era of the MLB.
3. When Rickey signed Robinson, he made it clear to everyone involved, including Clay Hopper, the Montreal Royals' manager (the minor league team where Robinson began his professional career), that Robinson was to be treated fairly and without discrimination.
4. It is documented that Rickey did use strong words and threats to ensure that Robinson received fair treatment, including the threat of firing individuals who did not comply with his directive.
Therefore, in this specific context, the statement is accurate.
