On this morning's Wrestling Observer Radio it was reported Goldberg did sustain a concussion in his match against The Undertaker at WWE Super ShowDown (results here). The main event of the show saw Taker pick up the victory, although a number of blown spots occurred after Goldberg's injury.
As noted, after the match Goldberg wrote on Twitter, "Knocked myself out and thought I could finish...love my fans...but let u down. Everyone else that found 'pleasure'...hope ur happy."
In the video above, a fan captured Goldberg collapsing to the floor right after the matched finished.
Knocked myself out and thought I could finish.... love my fans.....but let u down. Everyone else that found "pleasure" ..... hope ur happy— Bill Goldberg (@Goldberg) June 7, 2019