UFC officials confirmed the new matchup on Friday, following initial reports out of Brazil. The welterweight headliner will remain a five-round fight. UFC Fight Night 34 takes place in Singapore and will be the promotion's first live event in Southeast Asia.
Lim (12-3-1) had already been scheduled to compete on the card against Kiichi Kunimoto. The South Korean welterweight is 2-0 since signing with the UFC this year, including a first-round knockout over Pascal Krauss in August.
Saffiedine (14-3) has not fought since claiming the Strikeforce welterweight title following a unanimous decision win over Nate Marquardt in January. This will mark the 27-year-old's first appearance in the UFC.