Tackle Bryant McKinnie was traded Monday by the Baltimore Ravens to the Miami Dolphins, who needed to shore up a leaky offensive line.
The Ravens will receive a conditional late-round draft pick, Baltimore coach John Harbaugh said.
The 34-year-old McKinnie will likely compete for playing time with right tackle Tyson Clabo, who allowed two fourth-quarter sacks in Miami's loss Sunday to Buffalo and has given up seven sacks this season.
"It's a good move for us, good move for Bryant," Harbaugh said.
The Dolphins (3-3) haven't won in a month. In the past three games, they've allowed 12 sacks and committed seven turnovers — all by harried quarterback Ryan Tannehill. The team's downward spiral threatens to gain momentum with the next two games against division leaders New England and Cincinnati.
Tannehill leads the NFL with 26 sacks, but coach Joe Philbin resisted any temptation to shake up the offensive line when the team had a bye before the Buffalo game. Tannehill's fumble when he was sacked by Mario Williams in the closing minutes led to a Bills field goal that gave them a 23-21 victory.
Williams used a power rush on the play to beat Clabo, who took the blame.
The 6-foot-8, 352-pound McKinnie missed the first day of training camp this summer for being overweight. He started the first five games but lost his job to Eugene Monroe and was inactive for the first time in his career for the Ravens' two most recent games.
Last year McKinnie came off the bench during the regular season, then was a key figure in Baltimore's run to the Super Bowl title, starting all four playoff games.
McKinnie, who played in college for the Miami Hurricanes, has never missed a game because of injury. He played for the Vikings in 2002-10 and made the Pro Bowl in 2009.