As long as you spoke German.
But it wasn't all plain sailing as Werner, who started and played 89 minutes, was adominshed in front of his team-mates for not following his manager's tactics.
TV microphones picked up Tuchel's German instructions as the Chelsea manager was shown berating his player.
Tuchel reportedly said when the scores were still goalless: "Timo, how long are you staying on the left? You're playing on the right!
"The last 15 mins you've only been on the left! Don't you understand?"
Chelsea soon took the lead as Havertz's finish was deflected into his own goal by Ben Godfrey. Havertz then won the penalty which Jorginho scored.