The second goal and, technically, he has a case. They showed a reply in the ground that had me looking intently at the ref to see if VAR would spoil the fun, having just celebrated wildly.
Sane was definitely offside in a position that could have been deemed to have unsighted the keeper; however, Ospina's movement suggests that Sane did not affect the keeper who was clearly moving in the direction of Gundogan's shot and had absolutely no hope of recovering and stopping Vinnie's deflection. I think Sane was therefore an irrelevance and the goal correctly stood, but I am biased.