Manchester City supporters were left furious as BT Sport's streaming app was hit with difficulties in the early stages of their Champions League clash with Borussia Dortmund.
Pep Guardiola 's men travelled to the Signal Iduna Park on Tuesday evening having already booked their place in the next round of the competition. Despite that, there was still huge interest in the match with it signalling Erling Haaland 's first return to Dortmund since sealing his £51m switch to the Premier League champions in the summer.
However supporters hoping to watch the game from home were left severely disappointed, as BT Sport's official app was struck down with problems.
