The Facts: Craig Kelley of the Colts website passes along word that Heyward-Bey sprained his left knee at the team’s practice on Sunday.

Diehards Line: According to PFT's Josh Alper, there’s nothing more about the extent of the injury or possible timetables for return at this point, but it’s a good bet that Heyward-Bey will see some time on the sideline and miss next weekend’s preseason opener against the Bills next Sunday. Remember, Heyward-Bey’s work in camp earned him some praise from HC Chuck Pagano recently, especially when it came to the growing connection that the new member of the team was making with quarterback Andrew Luck. The Colts see Heyward-Bey as one of their top three receivers along with Reggie Wayne and T.Y. Hilton. ... Stay tuned. More as further details come to light.