The Los Angeles Rams have placed wide receiver Cooper Kupp on the reserve/COVID-19 list, the team announced on Tuesday.
The move means Kupp could miss Sunday's game against the Arizona Cardinals, an NFC West clash which will see the winner advance to the playoffs.
The Rams will already be without starting quarterback Jared Goff, who had surgery to repair a broken right thumb on Monday.
Kupp, 27, has 974 yards receiving and three touchdowns on 92 receptions this season after signing a three-year, $47.25-million extension on Sept. 12.