After a spate of injuries at Sofi Stadium on Sunday, Seattle Seahawks players and head coach Pete Carroll are renewing calls for natural turf at all NFL stadiums.

The Seahawks lost receiver DK Metcalf to a knee injury against the Los Angeles Chargers when he planted his foot on a catch. He avoided ligament damage, but remains sidelined at practice with his timeline to return unclear.

J.C. Jackson wasn't so fortunate. The Chargers cornerback's season is over with a patellar tendon tear likewise sustained on a non-contact injury. Chargers wide receiver Mike Williams saw his ankle rolled on a tackle while his cleats were embedded in Sofi Stadium's artificial turf. He's expected to miss several weeks with a high-ankle sprain.