Jurgen the German
Willie Hall
You don't think he's trying?
Costa has 5 yellows in the league this season... Not sure that's a good example. And that's one player, you're taking about Pochettino doing that for our entire team.
I think a certain amount of behaviour by the team comes from the manager tbh. I'm not saying Poch is asking players to scratch opponent's but you only have to look at Pulis or Mourinho's teams for example, their behaviour comes from or is at the very least influenced by the manager.