I guess you don't follow football much. Every year UDFAs slip through the cracks.
And yes there a more alot more.
17 UDFAs are in the NFL and God knows how many more had the NFL used 7 rounds throughout the history of the NFL.
Johnny Unitas was a 14 rounder.
Do these names ring a bell?
Dick "Night Train" Lane
All these players are UDFAs and are starters all the way to the HOF.