Dortmund's U21 side clinched a 1-0 victory over Real Madrid Castilla to lift the Premier League International Cup at Adams Park on Tuesday night.
It's a superb achievement from the German side, and they used this moment as an opportunity to mock Arsenal in the process.
"We just won the Premier League without scoring from a corner," a social media post read from Dortmund's official page.
The Gunners are two matches away from winning their first Premier League title since 2004, and their main source of goals has been from set-pieces.
Remarkably, 21 of their 68 league goals (31%) have come from a dead-ball situation, which explains why everyone knew the above tweet was directed at Mikel Arteta's men.
Arsenal won't care one bit, though, as successfully beating Burnley and Crystal Palace will see them end a 22-year wait for a league title.