CJ Cup scores: Keith Mitchell builds five-shot lead over Jordan Spieth, three others after Round 2

Mitchell hit 8-under 64 for a five-shot shot lead over Spieth, who is in a four-way tie for second

LAS VEGAS (AP) -- Rory McIlroy was trying to illustrate how deep the talent pool is on the PGA Tour by sharing a story about how impressed he was with Keith Mitchell the first time they played together.

Mitchell is providing McIlroy and everyone else with plenty of more fodder through two rounds of the CJ Cup at Summit.

One day after matching his career low with a 62, Mitchell followed that with an 8-under 64 on Friday to build a five-shot shot lead going into the weekend at The Summit Club.