The Washington Redskins have signed quarterback Pat White, the former West Virginia star, who spent one season with the Miami Dolphins, three people with knowledge of the situation confirmed.

White was at Redskins Park on Wednesday, had a workout and passed a physical then signed an agreement on a deal to join the Redskins and return to the NFL.

White, the 44th overall pick of the 2009 draft, spent his rookie season as a backup for Miami, used primarily in Wildcat formations. White as a rookie went 0-for-5 passing and rushed for 81 yards on 21 carries. White was released following the 2010 preseason.

White then spent some time with the UFL’s Virginia Destroyers, and then had two brief stints in baseball, with the Kansas City Royals and Miami Marlins farm systems.

White suffered a concussion in the 2009 season finale, and six months ago, he joined an ever-increasing group of former NFL players who have filed suit against the league. But a source confirmed a Washington Times report that White — who in his filing, claimed to suffer from “permanent injuries,” including severe headaches, speech problems and memory loss — on Tuesday dismissed his claim.

A person familiar with the situation said that White went through a full battery of tests and exhibited no issues from concussions.

Pat White Pat White will make the fourth quarterback on the Redskins’ roster. (Associated Press)

The Redskins signed White only hours after agreeing to terms on a deal to bring back veteran backup Rex Grossman on a one-year deal.

Washington under Mike Shanahan has brought four quarterbacks to training camp, and would likely do the same especially considering that Griffin still could be recovering from knee reconstruction.

In a radio interview with ESPN 980, Cousins on Wednesday said that the signing of White made sense because the Redskins need someone to run the same option-style plays that Griffin usually would run when they begin offseason practices.

— D.C. Sports Bog: Kirk Cousins, Pat White and ESPN