AP

The Miami Dolphins’ quarterback competition has reportedly undergone a significant shakeup.

David Garrard, who’s currently listed as the No. 1 quarterback on Miami’s depth chart, recently underwent knee surgery, according to Sean Jensen of the Chicago Sun-Times. That comes as a total surprise, and apparently surprises the media that covers the Dolphins every day. Miami Herald Dolphins beat writer Adam Beasley wrote on Twitter that Garrard didn’t miss any practices that have been open to the public.

According to Jensen, the surgery was minor — but significant enough to sideline Garrard for long enough that either Matt Moore or Ryan Tannehill is likely to start the regular season.

That’s a major blow for Garrard, and it’s the second consecutive year that Garrard has been dealt a major blow late in the offseason: Last year Garrard went through training camp as the preseason as the Jaguars’ starter, only to be cut just before the start of the regular season. Garrard ended up having back surgery and not signing with any other team until joining the Dolphins this year.

Now Garrard’s status is unclear for the start of the regular season, and so is the status of the quarterback position in Miami.

UPDATE 5:00 p.m. ET: A league source tells PFT that Garrard will be out for “a while.”