Washington Redskins rookie running back Richard Williams, drafted in the second round from Memphis State, flew to Washington yesterday for individual workouts with Redskins coaches, but will return home to Florida in seven to 10 days if he has not reached a contract agreement, his agent said yesterday.

"I think it is fairer to both sides to have an understanding ahead of time that when a young man comes (to work out) that it is being done in good faith," George Kickliter, Williams' agent, said.

Kickliter characterized his contract talks with Bobby Beathard, Redskins general manager, as "reasonably close (to agreement), but not very close. We've made substantial progress for the last 2 1/2 weeks and there is simply no reason . . . that we can't reach a fair agreement.

" . . . If our negotiations don't appear to be continuing forward in the next week to 10 days, we'll be put in a posture where we'll have to create some interest and, in Richard's case, that can be done fairly easily."

Although no U.S. Football League team holds negotiating rights to Williams--he was not drafted by a USFL team, and there are no territorial rights to Memphis State--Kickliter said he had discussions up until 10 days ago with the Tampa Bay Bandits. A Bandits' spokesman said yesterday the team had no interest in obtaining Williams.

"Richard's first preference is to play in the NFL," Kickliter said.

The agent for unsigned cornerback Darrell Green, the Redskins' top draft pick from Texas A&I, said he hopes to reach agreement on a contract in a few days. Monday, agent Carver Henry said he and the team still were $250,000 apart on a possible five-year deal.

"I talked to Bobby (Beathard) today. I made some concessions. I'd say we're about 20 percent closer now than we were (Monday)," said Henry, adding that Green would not participate in individual workouts without a contract.

Beathard flew to Florida yesterday, where league owners are meeting this week, and could not be reached for comment.