Set-pieces, Borussia Dortmund's weakness

Defensive weakness from set-pieces is one of the keys, probably the main one, to the current crisis at Borussia Dortmund, Sevilla's opponents in the last 16 of the Champions League.

Borussia, after their latest 4-2 defeat to Borussia Mönchengladbach, have slipped to seventh place in the German league table and have all but given up their chances of challenging for the title this season.

The statistics clearly show Borussia's problem defending corners and free-kicks.

Half of the 26 goals conceded by the German side in 18 games have come from so-called standard play.

Only bottom side Schalke 04 have a higher percentage of goals conceded from set pieces in the Bundesliga.

In the defeat against 'Gladbach, Borussia conceded three of four goals from set pieces, making the game a kind of mirror image of the whole season.

There have also been other games in which Edin Terzic's side, despite having some control, have ended up losing because of errors in defending fouls from corners, even against bottom-of-the-table teams such as Köln