The third-place finisher at Quicken Loans National has been accused of cheating.

Sung Kang finished at 12-under, 11 shots behind Francesco Molinari, but his Sunday playing partner, Joel Dahmen, is calling the legitimacy of that performance into question.

Dahmen was asked after the tournament why the group behind them played through on the 10th hole, and he sounded off on Twitter in blunt terms rarely seen in golf.

“Kang cheated,” Dahmen said. “He took a bad drop from a hazard. I argued until I was blue. I lost.”

Dahmen said he and Kang fought about whether Kang’s ball had crossed a hazard, which would have allowed Kang to restart closer to the hole.

The two bickered for 25 minutes, Dahmen said, until Kang dropped the ball across the hazard, 35 yards from the hole.

Dahmen’s caddie, Geno Bonnalie, echoed Dahmen on Twitter, saying, “We didn’t agree on the spot where it ‘crossed.’”

Kang, the world No. 107, mostly just wants to move on.

“He is standing by the ruling that was made by PGA Tour Rules officials on Sunday,” Kang said in a statement through PGA Tour communications, “and will have no further comment, other than he is looking forward to focusing on finishing out the season strong, and he is excited about the opportunity to play in The Open Championship again in a few weeks.”

Dahmen finished the day shooting 71, while Kang shot 64.