Todorov suffered a small fracture within his right knee, and has also ruptured his anterior cruciate ligament, due to a challenge from Plymouth's Kristzian Timar during the 2-1 home defeat.
This now means that Todorov will miss the rest of the 2007/2008 season and leaves boss Alan Pardew with three striker, who are Luke Varney, Chris Iwelumo and Izale McLeod. This could mean a return to The Valley for on-loan Gillingham striker Chris Dickson, or a dip into the loan market for Pardew.
CharltonMad wishes Toddy all the best in his recovery.