It was quite possibly the toughest championship loss in NBA history. Not like you really need to re-live the details of the 2013 Finals but here goes: Mere seconds away from clinching in Game 6 followed by a last-minute defeat in Game 7 and the Spurs were left to wonder what the heck happened while Miami celebrated its second straight title. Spurs guard Danny Green admitted yesterday in an ask-me-anything Q&A at that he’s not even close to recovering: It’s something I won’t ever forget and something that will be hard to put behind me until I win one. It’s something that’s going to live with me until I win a championship.