Could Botswana challenge America in the 4x4?

PrZ wrote:

I'd say yes if it was the best of Americans from last year, but now we've got Fred Kerley and we obviously know what he can do. Him, Merritt, Roberts and whoever else will be tough, but Botswana is so stacked. I think USA and Botswana will go 1-2 (in no particular order).

The only issue for the US is which guys can be rested in the heats. Roberts and 2 of either McQuay, Nelloms or London will run in the heats and final. More will be determined when we see who is in the final of the 400m after tomorrow's semis.