A bout between veteran heavyweights has been added to the UFC’s return trip to Brazil.

Officials today announced Roy Nelson (21-13 MMA, 8-9 UFC) and Antonio Silva (19-9-1 MMA, 3-6-1 UFC) have joined UFC Fight Night 95’s lineup.

The event takes place Sept. 24 at Nilson Nelson Gymnasium in Brasilia. It airs on FS1 following early prelims on UFC Fight Pass, though the bout order hasn’t been finalized.

Nelson is No. 15 in the USA TODAY Sports/MMAjunkie MMA heavyweight rankings. Silva isn’t ranked.

Nelson is currently in 1-4 skid and could be fighting for his job. After a three-fight skid that included losses to Mark Hunt, Josh Barnett and Alistair Overeem, the 40-year-old rebounded with a decision victory over Jared Rosholt. However, in his most recent bout, the former IFL champion and “The Ultimate Fighter 10” winner suffered a split-decision defeat to Derrick Lewis. He now heads to Brazil for the first time in his 12-year pro career.

Silva, a 36-year-old Brazilian, also is in a rut and is 1-5-1 in his past seven bouts. The former Strikeforce fighter and ex-EliteXC champion has suffered four knockout losses in his past five fights, including recent first-round defeats to Hunt and Stefan Struve. The latter lasted just 16 seconds.

The latest UFC Fight Night 95 card now includes:

Cristiane Justino vs. Lina Akhtar Lansberg

Roy Nelson vs. Antonio Silva

Renan Barao vs. Phillipe Nover

Erick Silva vs. Brandon Thatch

Michinori Tanaka vs. Rani Yahya

Mike De La Torre vs. Renato Moicano

Paul Felder vs. Francisco Trinaldo

Alan Patrick vs. Stevie Ray

Jussier Formiga vs. Dustin Ortiz

For more on UFC Fight Night 95, check out the UFC Rumors section of the site.