One Hamburg SV fan suffered "life-threatening injuries" and 19 more were seriously injured in celebrations after the team's return to the Bundesliga, local fire services said on Sunday.

Hamburg have earned promotion back to the Bundesliga to end a seven-year absence from the German top flight.Needing a win to confirm their return, the six-time German champions thrashed Ulm 6-1 at home on Saturday and fans engulfed the pitch at the Volksparkstadion at the final whistle to celebrate.

Six-time German champions Hamburg SV earned a triumphant promotion back to the Bundesliga after a seven-year absence, with Saturday's 6-1 demolition of Ulm guaranteeing them a top two finish in the second division with a game left to play.