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The Rimington Trophy narrowed its imaginary field down to 63 on Wednesday, and Utah was among two-thirds of Pac-12 teams who were represented.

Senior Siaosi Aiono, already one of 52 targets named in Rimington's spring list, was honored again. Aiono played center for the first time last season, starting 12 games and allowing just one sack in 747 plays prior to the Las Vegas Bowl (for which offensive line stats were not released).

It's possible that the 6-foot-2, 305-pound Aiono will not play much center in 2015. Utah coaches said in spring that they think highly of Aiono's abilities at right guard, and that injuries elsewhere might one day lead them to switch him back to guard while junior Hiva Lutui delivers the snaps.

Here's the full watch list rollout schedule:

July 8 • John Mackey Award and Rimington Trophy

July 9 • Lou Groza Award and Ray Guy Award

July 10 • Bronco Nagurski Trophy and Outland Trophy

July 13 • Jim Thorpe Award

July 14 • Butkus Award and Rotary Lombardi Award

July 15 • Biletnikoff Award and Wuerffel Trophy

July 16 • Davey O'Brien Award and Doak Walker Award

July 17 • Walter Camp Award

— Matthew Piper

Twitter: @matthew_piper