Detroit Lions wide receiver Calvin Johnson has not participated in practice all week and is expected to miss Sunday's clash with the Minnesota Vikings.

Johnson has been struggling with an ankle injury for weeks but coach Jim Caldwell has remained silent on whether or not he would play this weekend.

The 29-year-old has regularly missed practice on Wednesday and Thursday in recent weeks, and it is reported that he could be rested in order to get him healthy for the rest of the season.

Meanwhile, running back Reggie Bush also missed his third practice of the week with an ankle injury and he is also unlikely to play against the Vikings.