Absolutely. Any connection by Mwepu with the ball or other player, or blocking the keeper's view etc. then he is definitely interfering with play and you can check the offside lines.
However, I compare this to an LBW in cricket, you don't even bother checking ball tracking if the bowler has...
For me the first question isn't has Mwepu interfered from an offside position, the first question is "have the officials made a clear and obvious error?".
The answer to that question is that if it takes you 4.5mins just to decide to send the referee to a monitor, it already isn't clear and...
Clear and obvious is VAR’s remit. Given the time it took the one thing VAR could be 100% on is that it wasn’t clear and obvious.
That goal should have stood on whatever the onfield decision was, and had they flagged for offside, so be it. VAR after one look should have concluded there was no...
I was in S1G next to the Leicester fans - some of them were even applauding the goal after seeing it on the big screen again!! Astonishing g it was chalked off, truly astonishing.