The Buffalo Bills are without one of their most important defenders early on against the Arizona Cardinals in Week 1.

During Buffalo’s first drive of the season on defense, Johnson went down with an injury. The team announced that Johnson sustained a forearm problem and is questionable to return:

Johnson was spotted being attended to by medical staff on Buffalo’s sideline. The Bills’ top nickel defender had his arm taped but ended up heading to the locker room, according to reports.

In Buffalo’s defensive scheme, the nickel position is a full-time starting job. The Bills consistently only lineup with two linebackers which makes Johnson’s loss even larger.

Bills Wire will provide updates when information is made available.