As expected, linebacker Keenan Robinson was placed on injured reserve Monday, according to a source.
Robinson is believed to have suffered a pectoral muscle tear in Thursday’s 38-31 victory at Cowboys Stadium. Coach Mike Shanahan said on Friday that he feared the rookie would be lost for the season pending an MRI.
In limited playing time on defense, Robinson recorded 11 tackles in 11 games. Against the Cowboys, he replaced London Fletcher, who left the game in the fourth quarter after aggravating an ankle injury.
The Redskins will replace Robinson with linebacker Roddrick Muckelroy, whom they signed Monday. Muckelroy, 26, appeared in 19 games for the Bengals the past two seasons but was released earlier this month.