A group led by Symphony Technology Group managing partner William Chisholm has agreed to purchase the Boston Celtics for at least $6.1 billion, which would make the sale the richest in U.S. major pro sports history, a person with knowledge of the negotiations said Thursday. It remains unclear when exactly the deal will be closed and how the deal will be structured, said the person, who spoke to The Associated Press on condition of anonymity because neither side had made any public announcement of the agreement.
