The Russian player fired the head of Newport Sports Management during a meeting last week, Meehan told The Canadian Press on Wednesday. "I'm disappointed but I wish him well," said Meehan.
Ovechkin was not immediately available for comment.
It's believed Ovechkin's mother will be taking over her son's affairs. The 21-year-old is signed to his entry-level contract through next season.
Meehan's long list of clients includes Jarome Iginla, Nicklas Lidstrom, Jose Theodore, Michael Peca, Trevor Linden and Dion Phaneuf.