October 2011 - Braun tests positive for elevated testosterone levels. The result is not made public.
November 2011 - Braun wins National League MVP award after hitting 33 homers, stealing 33 bases and hitting .332.
December 2011 - ESPN reveals Braun's positive test from two months ago. The Brewers slugger faces a 50-game suspension, but is appealing it. His representatives say "there are highly unusual circumstances surrounding this case which will support Ryan's complete innocence."
February 2012 - Braun's suspension is overturned by baseball arbitrator Shyam Das, the first time a baseball player successfully challenges a drug-related penalty in a grievance. During the hearings, questions are raised about the chain of custody for Braun's urine sample. It was collected on Saturday, Oct. 1, but not sent to the lab until Monday. Braun reports to spring training.
March 2012 - After the sample collector releases a statement defending his actions and saying that he never tampered with the sample, Braun's lawyer criticizes the statement by Dino Laurenzi Jr., saying that Braun was "properly vindicated."
September 2012 - Braun finishes the season after leading the NL with 41 homers. He hits .319 and drives in 112 runs.
February 2013 - Braun's name appears in records from the Biogenesis of America LLC clinic, a defunct business near Miami that allegedly provided performance-enhancing substances to several players. The original report about the clinic was published by Miami New Times, and Braun's tie to the clinic was first reported by Yahoo Sports.
June 2013 - Braun goes on the disabled list because of a persistent sore right thumb.
July 2013 - After missing 26 games, Braun returns, but is ineffective in three games before accepting a suspension for the rest of the season. He finishes his 2013 year with nine homers, four steals and a .298 average in 61 games.