Undefeated Dortmund go second with 4-2 comeback win over Union Berlin

DORTMUND, Germany : Borussia Dortmund scored twice in five minutes in the second half to come from a goal behind and beat visitors Union Berlin 4-2 on Saturday to climb to second place in the Bundesliga table.

Unbeaten so far this season, Dortmund are on 17 points from seven matches, one behind leaders VfB Stuttgart.

Bayer Leverkusen, on 16, are in action on Sunday against Cologne. Champions Bayern Munich, on 14 points, host Freiburg on Sunday.

In a topsy turvy first half Dortmund took a seventh minute lead with Germany forward Niclas Fuellkrug poking the ball in from close range on the rebound after his header was saved.

The hosts' fans hardly had any time to celebrate, however, as Fuellkrug deflected a Robin Gosens header into his own net two minutes later.

Both teams had a goal disallowed before Union, who have now lost seven consecutive matches across all competitions, turned the game around, scoring with a 31st minute penalty by Leonardo Bonucci.

Dortmund coach Edin Terzic decided to switch to a three-man defence after the break and brought on Julian Brandt for Jamie-Bynoe Gittens and the move paid off instantly.

Defender Nico Schlotterbeck found enough space to move forward and he unleashed an unstoppable shot into the top corner four minutes after the restart.

The comeback was complete in the 54th when Marco Reus launched a counterattack and laid the ball off for substitute Brandt, who had no trouble beating keeper Frederik Ronnow to make it 3-2.

Julian Ryerson's 71st minute shot then took a wicked deflection from Gosens to put the game to bed and stretch Dortmund's unbeaten run in the Bundesliga to 15 consecutive matches.