Arkansas’ Frank Ragnow and Alabama’s Bradley Bozeman received the highest grades among college football centers, according to Pro Football Focus.

Ragnow graded at 89.4 overall, while Bozeman was 87.6. Both players have served as starters in 2016 after transitioning over to the center position full-time this offseason.

Ragnow started in all 13 games at right guard in 2015. The junior was named to the preseason Rimington Trophy Watch List and the SEC Offensive lineman of the Week on Sept. 19. He also rated as a four-star prospect for the 2014 national recruiting class, according to the 247Sports Composite Rankings.

Bozeman earned the starting job at center in preseason after playing in all 15 games as a reserve guard and center. He has helped the Tide rank No. 15 among FBS teams in scoring offense (40.1 ppg), No. 11 in rushing offense (259.3 ypg) and 30th in total offense (478.6 ypg). Bozeman was a three-star prospect for the 2013 national recruiting class, according to the 247Sports Composite Rankings.