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Period: to
66 and 70
St. Louis Cardinals first baseman Mark McGwire and Chicago Cubs outfielder Sammy Sosa hit 70 and 66 home runs respectively, eclipsing the single-season home-run mark of 61 set by Roger Maris in 1961. A year later, McGwire and Sosa hit 65 and 63 home runs, respectively. -
Period: to
73
Barry Bonds of the San Francisco Giants hits 73 home runs to set a new single-season record. -
Capitol Hill
McGwire, Jose Canseco, Sosa and Rafael Palmiero appear before the House Government Reform Committee to answer questions about steroid use. Lawmakers argue baseball’s penalties are too lenient. -
Palmeiro suspended
Designated hitter Rafael Palmeiro of the Baltimore Orioles tests positive for PED use and is suspended 10 days. In total, 11 major league players were suspended 10 days each in 2005. -
50 games
Players and owners agreed to tougher penalties for PED use. Players would receive a 50-game suspension for a first offense, 100 games for a second and a lifetime ban for a third. -
A-Rod linked to steroids
Sports Illustrated reports New York Yankees star Alex Rodriguez tested positive for steroids during his MVP season with the Texas Rangers in 2003. -
756
Bonds hits his 756th home run, setting a new all-time career home run record, formerly held by Hank Aaron. -
Mitchell Report
Former Sen. George Mitchell releases a report that identifies 85 players as having links to PED use. The list includes Andy Pettitte, Roger Clemens, Gary Sheffield, Jason Giambi, Eric Gagne and Troy Glaus. -
Rodriguez admits PED use
Rodriguez publically admits he used banned substances between 2001-03. -
Manny being Manny
Los Angeles Dodgers Manny Ramirez is suspended for 50 games after a positive test. One year later, Ramirez, then playing for the Tampa Bay Rays, is suspended 100 days for a second PED offence. -
Braun suspended, appeals
ESPN reports Milwaukee Brewers Ryan Braun faced a 50-game suspension after a positive drug test. Braun successfully appealed the suspension in January 2012 when arbitration panel ruled there were valid questions about the manner in which the test sample had been handled. -
Cabrera gets 50
San Francisco Giants Melky Cabrera is suspended for 50 games after testing positive. Cabrera, who had been named MVP at the 2012 All-Star Game, was at the time leading the major leagues with 159 hits and was second in the National League with a .346 batting average. -
Biogenesis links
ESPN reports as many as 20 players, including Rodriguez, Braun and Cabrera, may face 100-game suspensions because of links to a Florida wellness clinic. Report said Anthony Bosch, head of of Biogenesis of America, has agreed to speak with MLB about players linked to PED use.