From the moment Andy Murray walked into the news conference at Melbourne Park, you felt a sense that something wasn't quite right.
Asked a simple opening question of how he was feeling, an emotional Murray struggled to get an answer of "not great" out before covering his face with his cap and sobbing underneath.
Murray has often showed his emotion on court but this was different. This was raw emotion in a place where players - and indeed sport stars generally - don't like to show their true feelings in front of the world's media.
A sombre silence filled the room after Murray temporarily left - before he returned, a little more composed, and managed to tell us more.
The Scot said he planned to retire after this year's Wimbledon but feared the upcoming Australian Open could be the final tournament of his career....