OWINGS MILLS - Ravens cornerback Cary Williams' frustration was evident throughout the second half, his irritation building with each successful pass completion in his direction.
It was another long game for Williams and Baltimore's pass defense.
Baltimore came away with a 31-30 win, and two late stops by the defense played a large role in that, but the majority of the defense's night was defined by its inability to stop Tom Brady and the New England Patriots' passing game.
Brady finished 28-of-41 for 335 yards with one touchdown and no interceptions.
Pro Bowl tight end Rob Gronkowski was limited to just 21 yards on two catches, but wide receivers Wes Welker (eight catches, 142 yards) and Brandon Lloyd (nine catches, 108 yards) both exceeded 100 yards receiving.
Welker had a 59-yard catch on the fourth play of the Patriots' second possession, exploiting a blown assignment by Ravens safety Ed Reed to help set up an early Stephen Gostkowski field goal.
"We opened up the gate on a lot of their plays," Baltimore safety Bernard Pollard said. "You look at the deep route with Welker, we did that. He didn't do that. It wasn't nothing new. We did that. And a few other plays, we just messed them up."
While most of Welker's damage came against zone coverage, the bulk of Lloyd's was done while singled up with Williams in man-to-man coverage.
Seven of Lloyd's nine catches came while being defended by Williams.
"We've got to work on every aspect of our game," Williams said. "We're far from perfect, we know what is expected of us, and we just need to come together as a unit and get the job done."
Just a week earlier, Philadelphia Eagles quarterback Michael Vick threw for 371 yards and a touchdown in a 24-23 win against the Ravens.
Like New England, the Eagles had two pass-catchers exceed 100 yards receiving.
Tight end Brent Celek led the way with eight catches for 157 yards while wide receiver Desean Jackson, working against a combination of Williams and fellow cornerback Jimmy Smith, had seven grabs for 114 yards.
Baltimore's pass defense is currently ranked 28th in the NFL (out of 32 teams).
The Ravens are surrendering an average of 290 yards per game through the air.
They have yielded 12 passing plays of 19 yards or more during the last two games, although they did limit the Patriots to just two following the early big play to Welker.
"We have to be sounder in the pass game," Pollard said. "In the positions we're in - whether it's man, whether it's zone, whether it's blitz - we've got to be sound, and all 11 of us have to go. I think that's one of the big things."
Baltimore's run defense has tightened up in the last two weeks after a shaky performance during the team's season-opening win against the Cincinnati Bengals.
New England ball-carriers managed just 77 yards on 34 carries Sunday, an average of only 2.3 yards per carry.
A week earlier, the Ravens held Eagles Pro Bowl running back LeSean McCoy to only 81 yards on 25 carries.
Considering the improvement against the run and the struggles to stop the pass, Pollard expects teams to continue testing Baltimore through the air.
"We've just got to watch the film and know that a lot of these things that we messed up on against New England, [teams] are going to look at that and try to attack us," Pollard said.
"But we just have to get back to playing Ravens football," he added. "We've got to eliminate the [missed assignments] and the missed tackles."
NOTE: Wide receiver Torrey Smith spent the day with his family Monday while mourning the death of his younger brother, but Ravens coach John Harbaugh said Smith plans on being at practice today and that he expects the second-year receiver to play Thursday night against the Cleveland Browns. Smith had six catches for 127 yards and two touchdowns in Sunday's win against the Patriots, less than 24 hours after learning of his brother's fatal motorcycle accident late Saturday night in Virginia.