The San Francisco 49ers' on-and-off interest in cornerback Eric Wright is "on" again -- and just in time to beat an NFL deadline.The team announced Wright's signing and placement on the non-football injury list Thursday just as a 4 p.m. ET deadline for using the NFI designation on free agents was about to pass with the arrival of the 49ers' first exhibition game.Eric Wright's Five-year GlancePlayers on the NFI list can remain there to begin the season, at which point they stop counting against the active roster limit.