One-time UFC middleweight title contender Thales Leites will return to the Octagon this August, taking on Tom Watson at UFC 163.

UFC officials announced the fight on Thursday, as it joins a growing list of bouts for the August 3 event from Rio de Janeiro, Brazil.

Leites (20-4) worked his way up the ladder, securing a title fight with Anderson Silva. He was defeated by decision, and releases from the promotion after another loss in 2009 to Alessio Sakara.

Since that time, the Brazilian has posted a 6-1 mark, including four submission wins.

Watson (16-5) sports a 1-1 mark in his two UFC appearances. He defeated Stanislav Nedkov earlier this year.