ALLEN PARK -- Of the three Lions injured in the win at Miami on Sunday, linebacker Landon Johnson seems the least likely to play this Sunday against the Vikings according to coach Jim Schwartz.

Johnson suffered a concussion, a problem he has had previously.

Bobby Carpenter stepped in for Johnson and finished with a team-high nine tackles.

Schwartz also said the progress of CB Chris Houston (shoulder) and WR Calvin Johnson (ankle) will be watched through the week of practice.

Johnson practiced on a limited basis last week because of his ankle injury and still started on Sunday.

In his first start since Thanksgiving, Shaun Hill played well in the win, but Schwartz will wait until later in the week to name a starter for Sunday.

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