Carolina Panthers offensive tackle Matt Kalil is week-to-week after undergoing arthroscopic surgery on his right knee Monday.
According to the team's official website, Panthers head athletic trainer Ryan Vermillion said Kalil will be "evaluated on a weekly basis," putting his status for Week 1 of the regular season in question.
Kalil, 29, was a stalwart for the Minnesota Vikings at left tackle across five years with the organization after it used the No. 4 overall pick on him in 2012. He started 66 straight games to begin his career.