Just two touches Sunday
Mattison had one carry for two yards and one reception for four yards in Sunday's loss at Cincinnati.
Mattison played just nine snaps on offense as the Vikings used the running game sparingly when falling behind early. Mattison may get more involved if the Vikings are ahead and running the ball more often, but he won't get significant touches without a Dalvin Cook injury.
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Cook (ankle) isn't a participant at Thursday's practice, Eric Smith of the Vikings' official site reports.
Cook (ankle) was a non-participant at Wednesday's practice.
Cook (ankle) will get some work in during Wednesday's practice, Chris Tomasson of the St. Paul Pioneer Press reports.
Westbrook played just two snaps on offense and returned three punts for a 21-yard average in Sunday's loss at Arizona.
Herndon did not have a target and played just 12 snaps on offense in Sunday's loss at Arizona.
Conklin had two receptions for 15 yards on four targets in Sunday's loss to Arizona.
Mattison had three carries for 11 yards and one reception for 17 yards on his only target in Sunday's loss to Arizona.
Osborn caught five of six targets for 91 yards and a touchdown in Sunday's 34-33 loss to the Cardinals.
Thielen caught six of seven targets for 39 yards and a touchdown in Sunday's 34-33 loss to the Cardinals.
Jefferson caught six of 10 targets for 65 yards and a touchdown in Sunday's 34-33 loss to the Cardinals.