Three days ago, when none of the Washington Redskins' 11 draft choices had signed a contract, Coach Joe gibbs said he was hoping for a "windfall" of agreements by this weekend.

Yesterday, Gibbs got what he wanted. Seven of the team's rookies agreed to terms, joining two other high-round draft picks, Wayne Asberry and Kenny Fells, who agreed to contracts Thursday.

But the Redskins' top choices -- defensive end Markus Koch and wide receiver Walter Murray -- remain unsigned. National Football League rules say a player must be under contract to practice, so unless Koch and Murray sign this weekend, they will be unable to participate in the opening drills of training camp Monday.

Rookies and selected veterans are expected to report Sunday to the Redskins' camp at Dickinson College in Carlisle, Pa. Contracts are expected to be signed then.

Koch, a Canadian citizen, apparently has resolved his visa problems and is expected to be in the United States this weekend, according to Redskin General Manager Bobby Beathard and Marvin Denhoff, Koch's Los Angeles-based agent.

Koch was denied entry to the United States when he could not present the proper documents at the border, several sources said. Apparently he did not have the work authorization visa he needed, and his student visa (he attended Boise State in Idaho) had expired.

It's uncertain how he obtained the visa, but he now apparently has it.

Eugene Higashiyama, an assistant to Sen. Pete Wilson (R-Calif.) dealing with immigration issues, said he received a call Thursday from Jeff Dankworth, who works with Denhoff, asking for help in getting Koch into the country.

" Dankworth told me the Redskins had not filed the papers for Koch," Higashiyama said. "He kept suggesting they bring the guy in illegally. I told him, 'You can hide a guy that big.' "

Dankworth did not return phone calls to his office yesterday, but Denhoff said: "That did not happen. The guy Higashiyama wasn't helpful."

Denhoff said there was "a real strong possibility" that Koch would report to training camp on time.

Defensive back Alvin Walton, the team's third-round selection, was the highest draft choice who agreed to a contract yesterday. Terms of his deal were not disclosed.

Linebacker Ravin Caldwell, the fifth-round selection who has been plagued by an injured knee, agreed to a three-year deal believed to be worth $420,000, plus a $45,000 guaranteed signing bonus and a $10,000 bonus if he makes the roster.

Quarterback Mark Rypien, a sixth-round pick, agreed to what is believed to be a two-year deal worth about $225,000, including bonuses. Offensive lineman James huddleston, another sixth-round pick, agreed to a three-year contract worth about $300,000, including bonuses.

Running back Rick Badanjek of Maryland, selected in the seventh round, agreed to what is believed to be a two-year deal worth about $190,000, including bonuses.

Wide receiver Eric yarber, the 12th-round pick, agreed to what is believed to be a three-year contract worth about $240,000, including bonuses.