Quote (Edgard @ 18 Dec 2016 18:06)
Koscielny was keeping him on, it's not where his upper body is, it's the leg that keeps him on.
nop, every body part you can legally score with is relevant for offside decisions so it was indeed slightly offside.
that being said, it was so close that you can't really blame the linesman, especially considering that they are supposed to only wave the flag when they are sure it's offside and when in doubt decide in favour of the attacker...