USA TODAY Sports/MMA Junkie rankings, Aug. 15: Khalil Rountree enters top 15

UFC on ESPN 51 saw a number of solid performances, but a light heavyweight earned a new spot in the rankings.

Khalil Rountree extended his winning streak to four by stopping Chris Daukaus in the first round of their main card bout with devastating punching power. Rountree has stopped three opponents on his current run, and has earned a spot in the light heavyweight rankings, settling in at No. 13.

Check out all the latest pound-for-pound and divisional USA TODAY Sports/MMA Junkie rankings above.