The Seattle Seahawks ain't playin' around about COVID-19 precautions ... they just cut a rookie, reportedly all 'cause the guy tried to sneak a woman into the team's hotel. Here's the deal ... NFL Network's Tom Pelissero says Kemah Siverand attempted to dress up a female companion like a Seahawks player in an attempt to get her past security and into his room. The problem? Pelissero says Siverand's plan was all caught on camera ... and with Pete Carroll implementing a bubble-like atmosphere for the 'Hawks -- that's a big no-no.