Question: Who is this American professional baseball player for the Washington Nationals of Major League Baseball (MLB) who is also Scott Boras's client?

Context articles: Jordan Zimmermann
2012 Washington Nationals season
Max Scherzer
Scott Boras
Taylor Hill (baseball)
Erick Fedde
Bryce Harper
Barney Gilligan
Trea Turner
Bill Wise (baseball)

Jordan M. Zimmermann (born May 23, 1986) is an American professional baseball pitcher for the Detroit Tigers of Major League Baseball (MLB).
 He previously played for the Washington Nationals.
 Zimmermann is a two-time MLB All-Star, and co-led the National League in wins in 2013.
 In 2014, Zimmermann pitched the first no-hitter in Washington Nationals history.
The Washington Nationals' 2012 season was the eighth season for the baseball franchise of Major League Baseball in the District of Columbia, the fifth season at Nationals Park, and the 44th since the original team was started in Montreal, Quebec.
 After finishing the previous season in third place with an 80–81 record, out of last place in the NL East for the second time since moving to Washington, the Nationals made several moves to pursue playoff contention in 2012 and beyond.
 Despite being plagued with injuries, the Nationals had an impressive start to the season, never dropping below the .500 mark and consistently holding first or second place in their division.
 On September 3, the Nationals won their 82nd game of the season, making this season their first winning season since moving to Washington, D.C. in 2005 and the first for the franchise since 2003.
 On September 20, the Nationals beat the Los Angeles Dodgers to clinch the franchise's first postseason berth since 1981, and the first for a Washington-based team since the Washington Senators won the American League pennant in 1933.
 On October 1, the Nationals clinched the National League East division.
 On October 3, they went on to clinch the best record in Major League Baseball at 98-64.
 They finished the season with a 98-64 record and played the St. Louis Cardinals in the Divisional Series.
 On October 12, in Game 5 of the NLDS, they lost to the Cardinals 9-7 and were eliminated.
Maxwell M. Scherzer (born July 27, 1984) is an American professional baseball pitcher for the Washington Nationals of Major League Baseball (MLB).
 He stands 6 ft tall and weighs 215 lb .
 He has also played in the MLB for the Arizona Diamondbacks and Detroit Tigers.
 A two-time Cy Young Award winner, Scherzer became just the sixth pitcher in Major League history to throw two no-hitters in a single season in 2015.
 On May 11, 2016, Scherzer tied the major league nine-inning strikeout record with 20, against his former team, the Detroit Tigers.
Scott Dean Boras (born November 2, 1952) is an American sports agent, specializing in baseball.
 He is the founder, owner and president of the Boras Corporation, a sports agency based in Newport Beach, California that represents roughly 175 professional baseball clients, including many of the game's highest-profile players.
 Boras has brokered many record-setting contracts since 1982, and many of his clients, including Shin-Soo Choo, Jacoby Ellsbury, Prince Fielder, Matt Holliday, Alex Rodriguez (until 2010), Max Scherzer, and Jayson Werth are among the highest paid in the game.
 Since 2013, Forbes magazine has named Boras the "Most Powerful Sports Agent in the World."
David Taylor Hill (born March 12, 1989) is an American professional baseball pitcher in the Washington Nationals organization.
 He made his Major League Baseball (MLB) debut with the Washington Nationals in 2014.
Erick James Fedde (born February 25, 1993) is an American professional baseball pitcher for the Washington Nationals of Major League Baseball (MLB).
 He played college baseball at UNLV.
 He was drafted by the Nationals in the first round of the 2014 Major League Baseball Draft.
Bryce Aron Max Harper (born October 16, 1992) is an American professional baseball right fielder for the Washington Nationals of Major League Baseball (MLB).
 He stands 6 ft tall and weighs 230 lb .
 Harper was chosen by the Nationals with the first overall pick in the 2010 Major League Baseball Draft.
Andrew Bernard "Barney" Gilligan (January 3, 1856April 1, 1934) was a professional baseball player whose career spanned 12 seasons, 11 of which were spent with the Major League Baseball (MLB) Cleveland Blues (1879–1880), Providence Grays (1881–1885), Washington Nationals (1886–1887), and Detroit Wolverines (1888).
 Gilligan, who predominately played as a catcher, also played as an outfielder and a shortstop.
 Over his career, Gilligan compiled a career batting average of .207 with 217 runs scored, 388 hits, 68 doubles, 23 triples, three home runs, and 167 runs batted in (RBI) in 523 games played.
 Although the majority of his career was spent in the major leagues, Gilligan also played in minor league baseball.
 He made his MLB debut at the age of 19 and was listed as standing 5 ft and weighing 130 lb .
Trea Vance Turner (born June 30, 1993) is an American professional baseball shortstop for the Washington Nationals of Major League Baseball (MLB).
 He played college baseball at North Carolina State University (NC State).
 The San Diego Padres selected Turner in the first round of the 2014 MLB Draft, and traded him to the Nationals in 2015.
 Turner made his MLB debut with the Nationals on August 21, 2015.
William E. Wise (March 15, 1861 – May 5, 1940) was an American professional baseball player.
 He played in Major League Baseball for three seasons from 1882 to 1886, splitting his time between pitcher and the outfield.
 He played for the Baltimore Orioles of the American Association, the Washington Nationals of the Union Association, and the Washington Nationals of the National League.
 Wise died in his hometown of Washington, D.C. at the age of 79, and is interred at Glenwood Cemetery.