PHILADELPHIA, NOV. 12 -- Cornerback Martin Mayhew's interception at the end of the first half of Washington's 28-14 loss tonight to the Philadelphia Eagles broke a dubious string for the Redskins.

They'd gone four games without an interception -- the longest such streak in club history. . . .

Quarterback Gary Hogeboom and guard Mark Schlereth were on the two-man inactive squads.

With Mark Rypien on the mend and likely to be activated for Sunday's game against the New Orleans Saints at RFK Stadium, Hogeboom had appeared to be the odd man out for good. But tonight's injuries seem certain to extend his career with the Redskins. He signed Sept. 24, the day after Rypien was injured against the Dallas Cowboys.

Schlereth had played in every game, but he sprained an ankle Friday. His injury allowed guard Mark Adickes to play for the first time this season.Roster Repercussions

The Redskins seemed likely to make at least one more roster move this week, even before the spate of injuries. Long snapper Randy Kirk, who was signed for one game, might be released to allow the activation of a fifth cornerback -- probably Johnny Thomas.

The loss to the Eagles is the Redskins' fifth in a row in Monday night games. But it has been a different story the next week. Since Joe Gibbs became coach, they're 15-2 in games after playing Monday night.