Update -- Nov. 30 - 3:50 PM ET --

Just as it looked like this was all systems go, sources inform us that while Donald Cerrone is signed and ready to go for Jan. 19, the same can't be said for Anthony Pettis.

At this time, Pettis will not face Cowboy Jan. 19, and it's unclear if he'll face Cowboy at all. We'll continue to investigate the situation.

In an effort to remain accountable, the original report can be read in full below.

A major lightweight clash between Donald Cerrone and Anthony Pettis is being targeted for the UFC’s ESPN+ debut Jan. 19 in Brooklyn, New York, sources informed FloCombat Friday afternoon.

The two WEC veterans previously competed in early 2013 at UFC on Fox 6, when Pettis stopped Cerrone in the opening round via a vicious body kick, earning Knockout of the Night honors for his efforts.

Cerrone was originally rumored to be taking on Justin Gaethje in early 2019, but it appears Pettis will now stand across from him on fight night.

The 35-year-old Cerrone has won two out of his last three Octagon appearances, including a recent armbar victory against “Platinum” Mike Perry. A bout against Pettis signifies Cerrone’s first bout at lightweight since he lost a title fight to Rafael Dos Anjos in December of 2015.

Conversely, Roufusport’s Pettis has split his last six appearances, going 3-3 in that timeframe. In the co-main event of October’s UFC 229 card, Pettis lost a spirited Fight of the Night to Tony Ferguson.

Stay tuned to FloCombat as the Brooklyn card continues to take shape.