Star-studded race with top 5 from Beijing 5K, plus Rowbury and Simpson (and others including Coburn and Infeld who both are outclassed here in a flat 3k).
I think the two Americans have something to prove, and so does Dibaba, but for Rowbury/Simpson to finish better than sixth will be tough. Ayana is certainly capable of sub-8:20, Cherono and Kibiwot are sub 8:25. Dibaba and Teferi are almost certainly capable of 8:25 this year.
American Record is 8:25.83 set 7 Sep 1985 in Rome.