Afterward, Valdes-Scantling says upset fans took things WAY TOO FAR ... writing on his social media page that some have actually threatened to kill him over the turnover.
"Death threats over a football game? Jesus you people need help," MVS wrote Sunday night. "It’s actually sick."
The good news? Valdes-Scantling says his teammates and coaches racing to his defense after the fumble (star QB Aaron Rodgers and head coach Matt LaFleur both said after they've still got plenty of confidence in the wideout) helped.
"I’m good," Valdes-Scantling said. "My team got my back."
The receiver also added earlier in the night, "Thank You God. Without failure there is no growth."
26-year-old Valdes-Scantling had been having a solid year for Green Bay prior to the fumble ... he's logged 25 catches for 518 yards and 4 TDs in 8 starts.