Quick Answer

The worst NFL draft busts include Ryan Leaf (#2, 1998), JaMarcus Russell (#1, 2007), and Tony Mandarich (#2, 1989) – all top picks who failed spectacularly in the NFL.

Who is the Worst NFL Draft Bust Ever?

The worst NFL draft busts of all time are typically considered to be high picks who completely failed to live up to expectations:

Top 5 Biggest Draft Busts

Ryan Leaf is most frequently cited as the #1 bust due to his high draft position (#2 overall), catastrophic on-field performance, and poor attitude.