The win over Saracens a fortnight ago put Saints into the semi-finals, but although the Exiles are yet to record a win they scared Leicester last time out and were leading at half-time at Welford Road.
So King says that preparations on the training field this week have been no different to any other match, which the Saints have confirmed will be kicking off at 3:15pm to maintain consistency with the majority of other Saturday afternoon kick offs this season.
“It’s an important match for us because victory would stand us in really good stead for the end of the season run-in,” he told the press this week. “We’re under no illusions though; you have to respect every team in the Aviva Premiership.
“We’ve been preparing in exactly the same way we normally do, and that’s really important because as soon as you start assuming things in rugby, you get found out pretty quickly. We treat London Welsh exactly as we treated Saracens in Milton Keynes.
“They’re in this Aviva Premiership for a reason. They were winning at half-time at Welford Road last time out, and that just goes to show that they’re a team we need to take very seriously.
“Yes they’ve had a tough season - I’m not going to shy away from that - but we need to make sure that mentally we’re on top form come Saturday.
“They’re a proud side, but they come here with nothing to lose. That can be a very dangerous thing.”
Saturday’s game is not on live TV, but you can follow the action wherever you are by heading to www.saintslive.co.uk for live text commentary and the best social media interactions!