On Sunday against the Detroit Lions, it was because of a thumb injury in the third quarter.
Matthews had returned on Sunday after dropping out of the Packers’ previous game in Week 3 at Cincinnati because of a hamstring injury.
He appeared to sustain his thumb injury on his third-quarter sack of Lions quarterback Matthew Stafford. Matthews was unblocked and easily dumped Stafford for a 12-yard loss.
Shortly after the play, he went to the locker room. His return was listed as questionable.