The Redskins moved to fill their most glaring need -- depth in the offensive line -- when when they picked up two players off the waivers list today.

Bill Bain, a 6-foot-4, 270-pound tackle from Southern California, and Gary Anderson, a 6-3, 250-pound guard from Standford, are expected to join the team before the end of the week.

Bain, a second-round pick by Green Bay four years ago, had been a starter for Denver but did not play last year with the Giants. He had not reported to the Giant camp when he was waived.

Anderson comes from New Orleans, where he played in one game last year before injuring an ankle. He was drafted in the 10th round by Detroit.

"bain had been rated pretty high coming out of college," said Coach Jack Pardee. "He's moved around a lot but maybe he has straightened out whatever problems he's had. We just have to see about Anderson."

But the Redskins didn't pick up either player in anticipation that they'd make the team. "We just didn't have enough bodies in the line and we had to have help," said General Manager Bobby Bethard.

Injuries had reduced the team to two tackles and were hindering practice sessions. Pardee said he hoped Bain would be able to pick up the Redskin system fast enough "to maybe play a little' in Saturday's exhibition game at Tampa Bay.

Best offensive play of the week: Mark Moseley's 61-yard field goal out of Mike Bragg's hold. Moseley was hitting them so easily from 50 yards (three of four) that he had to move back to get a challenge . . . The club now has 80 players on its roster. First league cutdown date isn't until August 14, when the number has to be reduced to 60 . . . The Redskin Received their annual briefing on drugs and betting from the NFL office. . . A heavy rainfall, accented by lightning, shortened the afternoon workout, to the delight of the tired players. Joe Theismann said he lost eight pounds in the sticky morning weather.