Free agent Danario Alexander underwent a second surgery on his torn right ACL in January. Alexander tore the ACL on August 6 and had surgery on August 15. Per the Union-Tribune San Diego, Alexander's latest procedure was a "revision ACL surgery" performed as a "followup," and may make him "unavailable" for the start of 2014 training camp. Sources say "DX" still hopes to play next season, though he's considered "unlikely" to be re-signed by the Chargers. Alexander has now undergone two right knee surgeries and a whopping five operations on his left knee stemming from recurring college injuries. His career is in obvious doubt.