INCIDENT: Harry Kane is in an offside position as the ball is played through to him, though Liverpool defender Dejan Lovren tries and fails to clear the ball, touching it onto Kane. Kane attempts to round Loris Karius, but is clipped and referee Jon Moss gives a penalty.
DERMOT'S VERDICT: Firstly, I think it's a foul. Regarding the offside, there's no doubt Kane is initially in an offside position, but once Lovren looks to take ownership of the ball, which he tries to do without doubt, that begins a new phase of play.
The discussion between linesman Eddie Smart and Moss centres around whether a) Lovren has played the ball, and b) whether Kane impacts the play, i.e. moves towards Lovren, and interferes with play, which he doesn't. Would managers know this? When referees go into clubs at pre-season, things like this are explained. The key thing here is: did Lovren clearly try to play the ball? And he did.