Giants' Buster Posey will announce retirement: report
San Francisco Giants' Buster Posey announces retirement
Why I'm applauding Buster Posey's decision to sit out Harper-Strickland brawl – New York Daily News
Major League Baseball and the concussion problem - Viva El Birdos
Giants' Posey forced out of loss with possible concussion
Giants catcher Buster Posey placed on concussion DL
Mike Morse on 7-day DL with concussion from hit from teammate Samardzija in Harper fight
For catchers, concussion dangers all too real
MLB allowed itself to be beaten again by Ryan Braun
Buster Posey suffers thumb injury on foul tip
Buster Posey Put on 7-Day Concussion IL by Giants; Drew Pomeranz Also Put on IL, News, Scores, Highlights, Stats, and Rumors