Saracens boss Mark McCall believes all the pressure will be on Northampton Saints going into their Premiership semi-final next weekend.
McCall's side made sure of their place in the last four on points difference ahead of Exeter Chiefs, booking a trip to Franklin's Gardens.
Saracens were tested early on by London Welsh but inevitably broke away to run in ten tries, including four for Chris Ashton.
"It is definitely going to be tough heading to Northampton next week," said McCall.
"I think they are in the position we were in last year – all the pressure is on them. We've come fourth now, we know the task ahead.
"We've had a good couple of games between us, we're looking to the challenge and we know the pressure isn't really on us.
"We tried not to panic early on here because Welsh have done well all season against the big teams and tend to get a couple of tries before half-time.
"We stayed calm as much as we could, we hoped we would have the fitness over them and we managed to get it at the end."