Just days after Alex Pereira and Tracy Cortez went public with their romance -- it's over.
The UFC stars had the MMA world buzzing when they spent New Year's Eve together ... with Cortez even sharing a snap of them locking lips to welcome 2026 on a high note.
But with the highs come the lows ... and apparently they came faster than anticipated, 'cause Poatan announced on Thursday they were no longer an item.