wide receivers and Kenny Stills were both ruled out of Sunday's game against the New England Patriots.
Cobb was dealing with a foot injury while Stills suffered a leg injury.
Based on production this season, Cobb is a bigger loss while entering the day with 36 catches for 434 yards and two touchdowns.
The 30-year-old failed to deliver in his final season with the Packers in 2018, as he finished with just 38 receptions for 383 yards and two touchdowns in nine contests, but he helped rebuild his value last season in Dallas with 55 grabs for 828 yards and three touchdowns as the Cowboys' No.