Herro's 29 points rally No. 4 Kentucky past Arkansas 70-66

Kentucky's Ashton Hagans, right, fouls Arkansas' Isaiah Joe (1) as Kentucky's Nick Richards (4) watches during the second half of an NCAA college basketball game in Lexington, Ky., Tuesday, Feb. 26, 2019. Kentucky won 70-66. (AP Photo/James Crisp)

Kentucky's Tyler Herro (14) drives near Arkansas' Isaiah Joe (1) during the first half of an NCAA college basketball game in Lexington, Ky., Tuesday, Feb. 26, 2019. (AP Photo/James Crisp)

Kentucky's PJ Washington, right, shoots while pressured by Arkansas' Adrio Bailey during the second half of an NCAA college basketball game in Lexington, Ky., Tuesday, Feb. 26, 2019. Kentucky won 70-66. (AP Photo/James Crisp)

Kentucky's Tyler Herro (14) and Arkansas' Jalen Harris (5) react after a play during the second half of an NCAA college basketball game in Lexington, Ky., Tuesday, Feb. 26, 2019. Kentucky won 70-66. (AP Photo/James Crisp)

Arkansas' Adrio Bailey, bottom, pulls down a rebound near Kentucky's EJ Montgomery during the first half of an NCAA college basketball game in Lexington, Ky., Tuesday, Feb. 26, 2019. (AP Photo/James Crisp)

Kentucky coach John Calipari directs his team during the second half of an NCAA college basketball game against Arkansas in Lexington, Ky., Tuesday, Feb. 26, 2019. Kentucky won 70-66. (AP Photo/James Crisp)

Arkansas coach Mike Anderson shouts to his team during the first half of an NCAA college basketball game against Kentucky in Lexington, Ky., Tuesday, Feb. 26, 2019. (AP Photo/James Crisp)

Kentucky's Keldon Johnson (3) and PJ Washington try to regain control of the ball near Arkansas' Daniel Gafford (10) during the first half of an NCAA college basketball game in Lexington, Ky., Tuesday, Feb. 26, 2019. (AP Photo/James Crisp)