It's being reported by Dave Meltzer that there are core members of Retribution who are not medically cleared to compete, which is apparently why none of the members showed up at Clash of Champions last night.

It's unknown if this is related to the COVID-19 outbreak within WWE that recently occurred, but it's believed to be possible that they're either out due to getting tested or just precautionary measures.

It's currently unknown how WWE will handle this for tonight's RAW.