Freshman receiver-returner Stefon Diggs — who had been a constant during Maryland’s injury-plagued season — has been ruled out of Saturday's game at Clemson because of an injured ankle.

Diggs was seen around campus this week wearing a walking boot.

He is among three players — running back Wes Brown (ankle) and receiver Tyrek Cheeseboro (concussion) are the others — listed as “out” for Saturday. That does not include the nine players — including all four true quarterbacks — who are listed as “out for the season.”

Diggs has caught 43 passes for 721 yards and six touchdowns. He is second in the Atlantic Coast Conference in all-purpose yards (1,774) and has already set the Maryland freshman record in that category.

Brown, like Diggs a freshman from Good Counsel, leads the Terps with 382 rushing yards. He had taken snaps out of the team’s version of the wildcat formation in Saturday’s loss to Georgia Tech before leaving with the injury.

“I just planted wrong on my ankle and it bothered me a little bit and I didn't want to risk it,” Brown said after that game.

The Terps (4-5, 2-3 ACC) are expected to again start converted linebacker Shawn Petty at quarterback against the heavily favored Tigers (8-1, 5-1 ACC).

Maryland's top defensive player, lineman Joe Vellano (ankle) is listed as questionable.

Here is Maryland's injury list:

University of Maryland Football Injury Report
at Clemson
    
Position
Name
Injury
Status
WR
Kerry Boykins
Hip
Out for the season
QB
C.J. Brown
Knee
Out for the season
QB
Devin Burns
Foot
Out for the season
PK/P
Nick Ferrara
Hip
Out for the season
LB
Demetrius Hartsfield
Knee
Out for the season
QB
Perry Hills
Knee
Out for the season
WR
Marcus Leak
Toe
Out for the season
DL
Andre Monroe
Knee
Out for the season
QB
Caleb Rowe
Knee
Out for the season
RB
Wes Brown
Ankle
Out
WR
Tyrek Cheeseboro
Concussion
Out
WR
Stefon Diggs
Ankle
Out
DL
Joe Vellano
Ankle
Questionable
DL
Justin Anderson
Ankle
Probable
DB
Undray Clark
Thigh
Probable
WR
Kevin Dorsey
Knee
Probable
LB
Cole Farrand
Wrist
Probable
DL
A.J. Francis
Shoulder
Probable
OL
Bennett Fulper
Toe
Probable
OL
Justin Gilbert
Knee
Probable
OL
Nick Klemm
Knee
Probable
QB
Shawn Petty
Shoulder
Probable
DB
Matt Robinson
Hip
Probable
TE
Ryan Schlothauer
Knee
Probable
TE
David Stinebaugh
Back
Probable
LB
Kenneth Tate
Knee
Probable