Novak Djokovic will chase a record-breaking 25th Slam title at this year’s Australian Open, starting Sunday, with Andy Murray as his coach in the first Major of the post-Rafael Nadal era.

By Howard Fendrich The Associated Press MELBOURNE, Australia — Novak Djokovic and Andy Murray have known each other for a quarter of a century. They played from the age of 12, meeting 36 times as ...