A welterweight fight is about to be added to UFC 163.

Demian Maia vs. Josh Koschech is slated to take place on the Aug. 3 card, MMAFighting.com confirmed with sources close to the fight after Brazilian Web site News MMA first reported it earlier this week. The UFC has yet to officially announced the 170-pound fight.

Maia (18-4) is coming off a dominant unanimous decision win over Jon Fitch at UFC 156 in February. That win improved his record as a welterweight to 3-0.

Koscheck (17-7) has lost his last two fights in a row. He most recently lost via first-round TKO to Robbie Lawler at UFC 157 in February,

UFC 163 will be headlined by Jose Aldo vs. Anthony Pettis for the UFC featherweight title. The event will take place in Brazil, and while some outlets have reported it will be held in Rio de Janeiro, that has yet to be made official by the organization, as well.