With the fight just over four weeks away, there wasn't a lot of wiggle room for the No. 5-ranked welterweight to come back in time and take the bout with Saffiedine.
Meanwhile, Lim has accepted the bout with the last ever Strikeforce welterweight champion as he tries to extend his two-fight win streak inside the Octagon. Lim was already scheduled to compete on the card against Kiichi Kunimoto, who will now await word on a new opponent being chosen for him by the UFC.
Lim has proven to be a tough customer thus far in his UFC career, picking up two wins by knockout after finishing both Pascal Krauss and Marcelo Guimaraes in consecutive fights.
He will face Saffiedine, who makes his long awaited UFC debut after defeating Nate Marquardt to win the Strikeforce title in Janaury before suffering a string of injuries that have prevented him from fighting until now.
The new fight between Lim and Saffiedine will remain the headline bout for the UFC's upcoming debut in Singapore on Jan 4.