Brian Roberts: (Knee) Likely Out 2-to-4 Weeks Staff

Update: Roberts was diagnosed with a ruptured tendon in the back of his knee and will likely be out 2-to-4 weeks, Dan Connolly of the Baltimore Sun reports.

Recommendation: This is another in a long line of injuries for Roberts, but he is fortunate to not be out longer considering he could not put any weight on his leg immediately after suffering the injury. Roberts will be placed on the disabled list later Friday and will be replaced on the roster by Yamaico Navarro. However, Ryan Flaherty and Alexi Casilla figure to see most of the action at second base while Roberts is out.