Inter were defeated 2-3 in their UCL clash away at Dortmund after leading 2-0 in the first half. That's the first time ever when they have lost a match after leading by more than 2 goals margin in the campaign(28 games previous of today).
They now sit 3rd in the group with 4 points, 3 points off Dortmund, having won 1, drawn 2 and lost 2.