Question: Who was the University of Kansas basketball player who played for the Phoenix Suns with his twin brother?

Context articles: 2013–14 Phoenix Suns season
Dick Van Arsdale
1980–81 Phoenix Suns season
1986–87 Phoenix Suns season
Tom Van Arsdale
Robin Lopez
1975–76 Phoenix Suns season
Markieff Morris
1988–89 Phoenix Suns season
1979–80 Phoenix Suns season

The 2013–14 NBA season was the Phoenix Suns' 46th season in the NBA.
 This season marked the first time that purple was not a primary color for the team (although it was still involved with their system).
 It was also the first time since the beginning of the 1987–88 NBA season that the Suns ended up drafting in the top 5 of a draft.
 In addition, it was the first time since the beginning of the 2000–01 NBA season that the Suns made complete changes in not only their logos, but also their jerseys.
 When the Suns began the regular season, Goran Dragić, P. J. Tucker, Markieff Morris, and his twin brother Marcus Morris were the only players returning from playing with last season's team (while Channing Frye was still on last season's team, he didn't play any games due to a life-threatening heart ailment he had at the time).
 The Phoenix Suns, despite their winning record, failed to make the playoffs.
 This drew criticism from many fans regarding the conference system as multiple sub-.500 teams in the Eastern Conference managed to make playoffs, with the Suns holding a Top 4 Eastern Conference seeded team had they been a part of that conference that year instead.
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".
The 1980–81 Phoenix Suns season was the 13th season for the Phoenix Suns of the National Basketball Association.
 At 57–25, the team had finished with its best regular season record.
 For the Suns, they had appeared in their first Finals five years ago but never could claim a divisional title as their own.
 Atop the Western Conference standings for the first time, the Suns had earned a bye in the first round of the playoffs.
 The offense was highlighted by balanced attack, with four starters averaging 15 points or more a game, but none greater than 19.
 This, despite a trade that meant the departure of four-time All-NBA Paul Westphal, who was swapped for fourth-year All-Star guard Dennis Johnson.
 In the conference semifinals, the Suns would meet the Kansas City Kings, a team they had defeated in the first round one season ago but found more difficult to handle this season.
 After a 22-point win in game one, the Suns would go on to lose game seven and the series.
 The Suns were led by head coach John MacLeod and played all home games in Arizona Veterans Memorial Coliseum.
The 1986–87 Phoenix Suns season was the 18th season for the Phoenix Suns of the National Basketball Association.
 The Suns started their 14th season under head coach John MacLeod, going 22–34.
 Suns management decided to replace the longstanding MacLeod with Dick Van Arsdale, a former Suns player from the Finals team coached then by MacLeod.
 With Van Arsdale, the Suns would finish the season going 14–12 in their last 26 games of the regular season.
 All Suns home games were played at Arizona Veterans Memorial Coliseum.
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.
Robin Byron Lopez (born April 1, 1988) is an American professional basketball player for the Chicago Bulls of the National Basketball Association (NBA).
 He was selected with the 15th pick in the 2008 NBA draft by the Phoenix Suns, was traded to the New Orleans Hornets in 2012 and was traded to Portland in 2013.
 He played college basketball for Stanford University alongside his twin brother Brook Lopez, who currently plays for the Los Angeles Lakers.
The 1975–76 Phoenix Suns season was the eighth season for the Phoenix Suns of the National Basketball Association.
 The season included an improbable run to the NBA Finals by a team that had never won a playoff series and made the playoffs only one other season in the franchise's existence.
 With a regular season record of 42–40, the Suns had finished third in the Pacific division standings and improved upon last season's win total by 10 games.
 The ensuing playoff run took plenty by surprise, including a seven-game series win against the Western Conference's top seed Golden State Warriors, a team that had finished 17 games ahead of the Suns in the divisional standings.
 The franchise's first Finals appearance pitted them against a 12-time champion in the Boston Celtics, whose roster featured three players from that season's All-Star Game.
 The 1976 NBA Finals would feature a memorable Game 5 triple-overtime thriller filled with controversies in which the Suns narrowly lost.
 Returning home for Game 6, the demoralized Suns would lose Game 6 and the series but not before endearing a generation of fans to the Suns franchise and showcasing a basketball from the desert southwest.
 The team's "Cinderella" season earned them the nickname Sunderella Suns.
 John MacLeod was head coach and the Suns played their home games at Arizona Veterans Memorial Coliseum.
Markieff Morris (born September 2, 1989) is an American professional basketball player for the Washington Wizards of the National Basketball Association (NBA).
 He played college basketball at the University of Kansas before being drafted 13th overall in the 2011 NBA draft by the Suns.
The 1988–89 Phoenix Suns season was the 20th season for the Phoenix Suns of the National Basketball Association.
 Cotton Fitzsimmons, Suns head coach for the '70–'71 and '71–'72 seasons, returned to the franchise where he got his first head coaching position.
 The Suns also enjoyed the benefits of a trade which brought Tom Chambers to the Valley of the Sun, who would have an All-Star season his first year in Phoenix.
 The Suns' regular seasons successes were carried on through the playoffs, sweeping Denver in the first round and defeating Golden State four games to one in the Western Conference Semifinals.
 The Suns saw their playoff fortunes reverse in the Conference Finals when they met the season's MVP Magic Johnson and the top-seeded Los Angeles Lakers, getting swept four games to zero.
 All home games were played at Arizona Veterans Memorial Coliseum.
The 1979–80 Phoenix Suns season was the 12th season for the Phoenix Suns of the National Basketball Association and at 55–27, the team's best regular season record since the franchise's inception.
 The Suns defeated Western Conference foe Kansas City in the opening round of the playoffs, marking the first time the Suns had won a playoff series in back-to-back seasons.
 In the Western Conference Semifinals, the Suns would lose to the Pacific-winning Los Angeles Lakers, who later went on to win the season's championship.
 The Suns were led by head coach John MacLeod, his seventh season with the team, and played all home games in Arizona Veterans Memorial Coliseum.