Hours after announcing the main event for the January card in Sweden, UFC officials have added the co-main event, as middleweights Dan Henderson and Gegard Mousasi square off.

Set for January 24 from the Tele2 Arena in Stockholm, the UFC Fight Night main card will air on FOX. Alexander Gustafsson and Anthony Johnson are scheduled for the main event in a No. 1 contender match.

Henderson (30-12) is returning to the 185-pound division after a loss to Daniel Cormier earlier this year. He last fought at middleweight when he met Jake Shields in Strikeforce, dropping the title.

Mousasi (35-5-2) is just 1-2 since signing with the UFC out of Strikeforce, losing to Ronaldo “Jacare” Souza and Lyoto Machida. His lone victory came vs. Mark Munoz.

Below is the current lineup:

Light Heavyweight: Alexander Gustafsson vs. Anthony Johnson

Middleweight: Dan Henderson vs. Gegard Mousasi