Dunlap and his agent, Drew, Rosenhaus, were spotted during training camp engaging in a conversation on Saturday with Bengals owner Mike Brown, Cincinnati.com reported.
The two sides have been working on an extension for Dunlap, who has spent his entire career with the Bengals since he was second-round draft pick in 2010. The team hopes to have a deal, which could make Dunlap one of the highest-paid defensive ends in the NFL, in place before the start of the regular season.
The 29-year-old Dunlap will be entering the final year of his contract. In 2018, his base salary will be $7 million.
Last season, Dunlap started all 16 games and played more than three-fourths of the team’s defensive snaps. He finished the season with 46 tackles, 7.5 sacks, seven deflections and the game-winning interception returned for a touchdown in a game against the Indianapolis Colts.
Dunlap, who is entering his eighth season, has spent his entire professional career with the Bengals and has racked up 64.5 sacks, 244 tackles and 16 forced fumbles.
The Bengals drafted former Ohio State defensive lineman Sam Hubbard, a Cincinnati native, in the third round this year to play defensive end. They also have Carl Lawson and Jordan Willis as potential contributors.