While the news isn't surprising, it still feels like the universe is piling on at this point. Via Joel Sherman's Twitter:
"I can report Yankees have 10 am press conf sked Sat at Steinbrenner Field at which Rivera is set to announce retirement after '13 season." He added, "Always possible private Rivera decides to change mind at last sec, but time and room are booked for his retirement announcement #Yankees."
It was pretty obvious last season when Mariano Rivera tore his ACL that retiring was in his plans after 2012 but that the injury prevented that from happening.
I'm glad we'll have one last season of Mo and I hope he has a great farewell tour around the Majors.