Question: Who is the identical twin brother of the man who finished second in Most Improved Player voting in the 1990-1991 NBA season?

Context paragraphs:
Earl Webb: William Earl Webb (September 17, 1897 – May 23, 1965) was an American right fielder in Major League Baseball, playing from 1925 to 1933.  He played for five teams, including the Boston Red Sox for three years.  He was born in White County, Tennessee and died in Jamestown, Tennessee.  In 1931, while playing for the Red Sox, he hit a record 67 doubles, a record that still stands today.  He had a career batting average of .306 with 56 home runs. Webb finished second in the league in extra base hits in 1931 with 84.  His .333 batting average in 1931 was seventh-highest in the American League.  He also finished sixth in the 1931 American League Most Valuable Player voting.  He batted left-handed, and threw right-handed.

Harvey Grant: Harvey Grant (born July 4, 1965) is a retired American National Basketball Association basketball player.  He is the identical twin brother of Horace Grant, also a former NBA player.

Tom Van Arsdale: Thomas Arthur Van Arsdale (born February 22, 1943) is a former professional basketball player.  A graduate of Indianapolis Emmerich Manual High School, the 6'5" guard played collegiately at Indiana University, Van Arsdale was selected by the Detroit Pistons in the 2nd round of the 1965 NBA draft.  He was named to the NBA All-Rookie Team in 1966, together with his identical twin brother Dick Van Arsdale.  Van Arsdale played in the NBA for 12 seasons; with the Pistons, the Cincinnati Royals, the Kansas City–Omaha Kings, the Philadelphia 76ers, the Atlanta Hawks, and the Phoenix Suns.  Van Arsdale, a three-time All-Star, was consistently over his career one of the best free throw shooters in the NBA.  He retired from play in 1977.

1990–91 Charlotte Hornets season: The 1990–91 NBA season was the Charlotte Hornets' third season in the National Basketball Association.  After playing one year in the Midwest Division in the Western Conference, the Hornets returned to the Eastern Conference and moved into the Central Division.  In the offseason, they signed unrestricted free agent Johnny Newman, who would lead the Hornets in scoring with 16.9 points per game.  At midseason, they traded Armen Gilliam to the Philadelphia 76ers for Mike Gminski.  The franchise improved seven games over the previous season finishing with 26 wins and 56 losses.  However, they finished last place in their division for the third straight season.  Top draft pick and Flyin' Illini star Kendall Gill made the All-Rookie First Team, averaging 11.0 points and 1.3 steals per game.  Charlotte also hosted the 1991 NBA All-Star Game during the season.  The Hornets led the NBA in attendance for the second time in three seasons.

1990–91 Detroit Pistons season: The 1990–91 NBA season was the Pistons' 43rd season in the National Basketball Association, and 34th season in the city of Detroit.  The Pistons entered the season as the two-time defending NBA champions and looked to win a third consecutive title.  The team posted a nine-game winning streak in November as they finished the first month of the season with a 13–2 record.  However, they would lose six of their next seven games in early December.  Midway through the season, the Pistons won eleven consecutive games, finishing second in the Central Division with a 50–32 record, eleven games behind the Chicago Bulls.  Last year's Finals MVP Isiah Thomas played just 48 games this season due to a wrist injury.  Dennis Rodman was named Defensive Player of The Year for the second straight season.  Thomas and Joe Dumars were both selected for the 1991 NBA All-Star Game, but Thomas did not play due to injury.

1990–91 Washington Bullets season: The 1990–91 NBA season was the Bullets' 30th season in the National Basketball Association.  In the offseason, the Bullets acquired second-year forward Pervis Ellison from the Sacramento Kings.  Bernard King provided a great story as he came all the way back from knee surgery he suffered while playing for the New York Knicks in 1985, to finish third in the league in scoring with 28.4 points per game.  He was also selected for the 1991 NBA All-Star Game.  However, with a nine-game losing streak between February and March, the Bullets struggles continued as they finished fourth in the Atlantic Division with a 30–52 record.  Harvey Grant showed improvement averaging 18.2 points per game, and finished second in Most Improved Player voting behind Scott Skiles of the Orlando Magic.

Dick Van Arsdale: Richard Albert Van Arsdale (born February 22, 1943) is an American former professional basketball player and coach, and a current National Basketball Association (NBA) executive.  A graduate of Indianapolis Emmerich Manual High School, the 6'5" guard played collegiately at Indiana University, Van Arsdale was selected by the New York Knickerbockers in the second round of the 1965 NBA draft.  He was named to the NBA All-Rookie Team in 1966, together with his identical twin brother Tom Van Arsdale.  Van Arsdale played in the NBA for 12 seasons; three with the Knickerbockers and the remainder with the Phoenix Suns (after he was selected in the 1968 expansion draft).  Van Arsdale, a three-time All-Star, was consistently over his career one of the best free throw shooters in the NBA.  He retired from play in 1977.  Van Arsdale is remembered in Phoenix basketball lore as the "original Sun".

1990–91 Utah Jazz season: The 1990–91 NBA season was the Jazz's 17th season in the National Basketball Association, and 12th season in Salt Lake City, Utah.  Early into the season, the Jazz traveled to Japan to play their first two games against the Phoenix Suns at the Tokyo Metropolitan Gymnasium.  With the offseason acquisition of Jeff Malone from the Washington Bullets, the Jazz continued to play sweet music in the regular season with a 26–12 start.  They ended up falling one game short of the Midwest Division title with another stellar record of 54–28, as Karl Malone finished second in the league in scoring with 29.0 points per game, and John Stockton led the league with 14.2 assists per game.  Malone and Stockton were both selected for the 1991 NBA All-Star Game.  In the first round of the playoffs, the Jazz defeated the 4th-seeded Phoenix Suns in four games, but lost in the semifinals to the Portland Trail Blazers in five games.  This was also their final season playing at the Salt Palace.  Following the season, Darrell Griffith retired.

Wasswa Serwanga: Wasswa Serwanga (wasswa meaning older male twin) (born July 23, 1976) is a former American football cornerback in the National Football League and Arena Football League.  He played one season for the San Francisco 49ers and two for the Minnesota Vikings of the NFL, and one for the Los Angeles Avengers of the AFL.  Serwanga attended and played football for UCLA, Sacramento State University and University of the Pacific.  His hometown is Sacramento, California where he and his brother were standout defensive backs for the Sacramento High School Dragons.  He is the identical twin brother of former NFL player Kato Serwanga.

Bonar Bain: Bonar Stewart Bain (February 4, 1923 – February 18, 2005) was a Canadian actor and the identical twin brother of actor Conrad Bain, who starred in the television sitcom "Diff'rent Strokes" as Phillip Drummond and "Maude" as Arthur Harmon.  He once played a fictional “evil” twin to Conrad (“Hank Bain”) in an episode of "SCTV", as well as Arthur (Conrad Bain)'s twin brother Arnold on "Maude".

Supporting paragraphs: 1990–91 Washington Bullets season Harvey Grant
Answer: Horace Grant