Washington Redskins left tackle Trent Williams said that the pressure of four straight losses is starting to mount and the team is feeling a level of desperation to win.

The Redskins visit Miami Sunday. The Dolphins, who earned their first win last week, are four-point favorites despite their inferior record. Washington is 3-5.

The Redskins agree with odds-makers that Miami’s talent level doesn’t match its 1-7 record. Judging by three narrow defeats earlier this season, Washington players believe the Dolphins should own a 4-4 mark at this point.

Williams sat out two of Washington’s four consecutive losses because of a high ankle sprain, returning to action despite his estimate that he was only 75 to 80 percent recovered.

With Williams back in the lineup and center Will Montgomery back at center, Washington’s offensive line did a better job of protecting quarterback John Beck, surrendering just one sack.

But it still didn’t do enough to pave the way for a victory.

“I feel the pressure, being one of the leaders on this team,” Williams said. “I feel obligated to get this win. Not that you don’t feel obligated every Sunday, but [with] the little skid we’re on, you’ve got to change something.”

Williams believes that schematically, Washington enters games well-prepared to win, and he sees great effort from the team. But most of the shortcomings are mental.

“It’s definitely not the effort. This team plays hard,” Williams said. “Guys are fighting hard out there. We just have to cut down on our mistakes and play together. We do little things here and there that hurt us. We’ve got to get that corrected Sunday.”

Williams admits that the blame for two of the crippling mental breakdowns in last week’s game belongs to him. He was flagged for a 15-yard unnecessary roughness penalty and a false start penalty that set the team back.

He hopes to avoid such mistakes this week.

“I’ve got to do better,” he said. “We’ve all got to better, so we can come out and get this win.”