Question: what is the nickname of the Baseball player who was helped by Ari Fleischer in his media strategy for his admission of steroid usage ?

<P0-S0>  He helped Mark McGwire in his media strategy for his admission of steroid usage. <P0-S1> Lawrence Ari Fleischer (born October 13, 1960) served as White House press secretary for President George W. Bush, from January 2001 to July 2003. <P0-S2>  Today, he works as a media consultant for the NFL, College Football Playoff, and other various sports organizations and players through his company, Ari Fleischer Sports Communications. <P0-S3>  He was also an international media consultant to former Canadian prime minister, Stephen Harper. <P0-S4>  He is also a regular CNN contributor. <P0-S5>  He was also briefly hired by Tiger Woods to help him with a strategy to make his entrance back on the PGA Tour, but was not retained after news stories surfaced promoting his representation of Woods. <P0-S6>  He was hired by the Green Bay Packers as a consultant in August 2008. <SEP> <P1-S0>  As a first baseman, his MLB career spanned from 1986 to 2001 while playing for the Oakland Athletics and the St. Louis Cardinals. <P1-S1>  He quickly grabbed media attention in 1987 as a rookie with the Athletics by hitting 33 home runs before the All-Star break, and would lead the major leagues in home runs that year with 49, setting the single-season rookie record. <P1-S2>  He appeared in six straight All-Star Games from 1987 to 1992 despite a brief career decline related to injuries. <P1-S3> Mark David McGwire (born October 1, 1963), nicknamed Big Mac, is an American former professional baseball player and currently a bench coach in Major League Baseball (MLB). <P1-S4>  Another string of six consecutive All-Star appearances followed from 1995 to 2001. <P1-S5>  Each season from 1996 to 1999, he again led the major leagues in home runs. <SEP> <P2-S0> Edward Wesley Schulmerich (August 21, 1901 – June 26, 1985) was an American Major League Baseball player from the state of Oregon. <P2-S1>  A native of the state, he played baseball and football at what is now Oregon State University where he participated in three sports. <P2-S2>  On the football team, he played three positions and earned the nickname of Ironhorse and all-conference honors. <P2-S3>  In baseball, he was a right-handed outfielder and after leaving school started his professional career in the minor leagues. <P2-S4>  Schulmerich then became the first player from the school to make it to the Major Leagues, playing for three teams in the early 1930s. <P2-S5>  He is a member of the Oregon State University Sports Hall of Fame and the Oregon Sports Hall of Fame. <SEP> <P3-S0> Maurice Morning Wills (born October 2, 1932) is an American former professional baseball player and manager. <P3-S1>  He played in Major League Baseball (MLB) primarily for the Los Angeles Dodgers from 1959 through 1966 and the latter part of 1969 through 1972 as a shortstop and switch-hitter; he played for the Pittsburgh Pirates in 1967 and 1968, and the Montreal Expos the first part of 1969. <P3-S2>  Wills was an essential component of the Dodgers' championship teams in the mid-1960s, and is credited for reviving the stolen base as part of baseball strategy.