When the Philadelphia Eagles traded for Kiko Alonso this offseason, they were hoping to add an element of speed from the former 2013 Defensive Rookie of the Year who missed the 2014 regular season with a torn ACL. It looks like those plans might have to be put on hold. According to FOX Sports NFL Insider Mike Garafolo, after undergoing further testing on Monday, there is a possibility that Alonso could be placed on injured reserve.

Alonso was removed from the Eagles' Week 2 game in the first half, and it was later reported that he was forced from action due to an injury to his left knee. This knee is the same one that Alonso tore prior to the 2014 regular season.

Alonso had been lining up as one of Philadelphia's starting inside linebackers, although he did cede some snaps to veteran linebacker DeMeco Ryans. In Week 1, Alonso played 49-of-77 defensive snaps compared to just 28-of-77 for Ryans. He also made this spectacular interception to rob Atlanta Falcons wide receiver Roddy White of a touchdown.

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If Alonso is forced to miss the remainder of the 2015 regular season, the Eagles will be left thin at the inside linebacker position. Fellow starter Mychal Kendricks was forced from Week 2 action with a hamstring issue, and he has missed extended time in the past with soft tissue injuries.

Behind Kendricks, the Eagles have Ryans and rookie Jordan Hicks. Ryans has been slow to regain form coming off of an Achilles injury and the rookie Hicks was exposed in coverage by Cowboys running back Lance Dunbar on a 39-yard wheel route during Sunday's game. The Eagles could be in trouble if both players are forced to fill in as starters.