Lasogga prodded home after Adrian Ramos' initial header had come back off the bar with five minutes remaining to secure Hertha's sixth promotion into the top flight, condemning Sandhausen to a defeat which leaves them eight points adrift of potential safety in the relegation zone.
Sandhausen start well
The role of the favourite was undoubtedly the hosts' ahead of the clash, but Hertha were surprised by an ambitious away side fighting for their lives at the opposite end of the table. Indeed it was Sandhausen who created the first couple of opportunities at the Olympiastadion, with Daniel Schulz and Julian Schauerte each calling Thomas Kraft into action within the opening 20 minutes.
Soon the Berliner gained control of proceedings, but Sami Allagui and Sandro Wagner were each denied by visiting goalkeeper Michael Langer prior to both sides going in goalless at the interval. The hosts' frustrations increased after the restart as Ronny sent a sizzling free-kick inches wide and Änis Ben-Hatira shot straight at the keeper, but eventually Hertha's patience was rewarded as Ramos climbed to plant a looping header onto the bar, the scraps of which Lasogga turned in to send the majority of the 52,135 wild.
Title race still on
Jos Luhukay's charges now cannot be caught at the Bundesliga 2 summit. They boast a 14-point cushion over third-placed 1. FC Kaiserslautern with only four games left to play. The second division title remains up for grabs, however, with Eintracht Braunschweig, who were held to a 1-1 draw by FC Erzgebirge Aue, trailing the leaders by four points.
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