Kai Forbath (right) was on the inactive list for Sunday’s loss at Green Bay because of a groin injury (John McDonnell/The Washington Post)

Washington Redskins place kicker Kai Forbath said Wednesday that the condition of his injured groin muscle is improving but he’ll stick to Coach Mike Shanahan’s stated plan of not testing the injury with any practice-field kicks until Friday.

“It’s getting better every day,” Forbath said. “Like Coach said, we’re going to give it a test on Friday. But it’s making a lot of improvements right now.”

Forbath said he hadn’t been having any troubles until suffering the injury last Thursday.

The Redskins signed John Potter, who’d been with the team in training camp, on Saturday, and he filled in for Forbath during Sunday’s loss in Green Bay. Forbath was on the inactive list for that game.

Potter remains on the roster, at least for now, as a potential replacement for Forbath again this weekend. The Redskins host the Detroit Lions on Sunday at FedEx Field.

Have a Redskins question? E-mail Mike Jones at mike.jones@washpost.com with the subject line “Mailbag question” for him to answer it in The Mailbag on Tuesday.

What’s ahead:

● The Redskins practice at 1 p.m. Mike Shanahan and Robert Griffin III address reporters afterward.

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