Roy Williams

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North Carolina head coach Roy Williams celebrates after North Carolina beat Kentucky 75-73 in the South Regional final game in the NCAA college basketball tournament Sunday, March 26, 2017, in Memphis, Tenn. (AP Photo/Brandon Dill)

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North Carolina head coach Roy Williams, right, celebrates with his team after beating Kentucky 75-73 in the South Regional final game in the NCAA college basketball tournament Sunday, March 26, 2017, in Memphis, Tenn. (AP Photo/Brandon Dill)

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North Carolina head coach Roy Williams speaks with North Carolina guard Joel Berry II (2) in the first half of the South Regional final game in the NCAA college basketball tournament against Kentucky, Sunday, March 26, 2017, in Memphis, Tenn. (AP Photo/Mark Humphrey)

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North Carolina head coach Roy Williams speaks to players against Kentucky in the first half of the South Regional final game in the NCAA college basketball tournament Sunday, March 26, 2017, in Memphis, Tenn. (AP Photo/Mark Humphrey)

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North Carolina head coach Roy Williams shouts to players in the second half of an NCAA college basketball tournament South Regional semifinal game against Butler, Friday, March 24, 2017, in Memphis, Tenn. (AP Photo/Mark Humphrey)

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North Carolina head coach Roy Williams reacts to play against Butler in the second half of an NCAA college basketball tournament South Regional semifinal game Friday, March 24, 2017, in Memphis, Tenn. (AP Photo/Brandon Dill)

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North Carolina head coach Roy Williams reacts during the second half of an NCAA college basketball game against North Carolina State, Sunday, Jan. 8, 2017, in Chapel Hill, N.C. (AP Photo/Ellen Ozier)

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North Carolina head coach Roy Williams emotes on the sideline against Iowa State during the second half of a third-round game in the NCAA college basketball tournament Sunday, March 23, 2014, in San Antonio. (AP Photo/David J. Phillip)

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North Carolina coach Roy Williams encourages his players during the first half of a third-round game against Iowa State in the NCAA college basketball tournament Sunday, March 23, 2014, in San Antonio. (AP Photo/David J. Phillip)

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North Carolina coach Roy Williams peers over his nameplate during an NCAA college basketball tournament news conference, Saturday, March 22, 2014, in San Antonio. North Carolina will play Iowa State on Sunday. (AP Photo/Eric Gay)

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North Carolina coach Roy Williams talks to his team as they play Providence during the first half of a second-round game in the NCAA college basketball tournament Friday, March 21, 2014, in San Antonio. (AP Photo/Eric Gay)

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North Carolina head coach Roy Williams, center, argues a call during the second half of an NCAA college basketball game against Pittsburgh in the quarterfinal round of the Atlantic Coast Conference tournament in Greensboro, N.C., Friday, March 14, 2014.(AP Photo/Bob Leverone)

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North Carolina head coach Roy Williams talks to his team during a time out in the first half of an NCAA college basketball game against Pittsburgh in the quarterfinal round of the Atlantic Coast Conference tournament in Greensboro, N.C., Friday, March 14, 2014. (AP Photo/Gerry Broome)