BBC Sport at Wembley
Ronnie O'Sullivan kept up his recent good record with a comfortable 6-0 win over 1994 Masters winner Alan McManus.
O'Sullivan did not need to be at his best to beat McManus
As usual, Wembley was packed out with O'Sullivan fans but despite the margin of victory, it was not one of his more free-flowing displays.
McManus produced an error-strewn performance, and O'Sullivan made the most of the chances he was given.
A break of 75 for 4-0 was O'Sullivan's best and a bad miss on the blue cost McManus the final frame.
Ronnie O'Sullivan admitted he had not scaled the heights against Alan McManus despite claiming a 6-0 whitewash.
"We had a good game at the UK Championship in York so I was expecting a good match but neither of us really hit form," he said.
"I could easily have got beaten so it's nice to be through. I'll enjoy the week because it's a good venue.
"I've watched bits of other games but I'll only watch it if it's on, I won't sit down for it with my cup of tea."
Alan McManus admitted he had not done himself justice after Ronnie O'Sullivan handed him his first Wembley whitewash.
"It's a big event and you're playing the man in form, so you want to put on a good performance but I didn't even look like winning a frame," the Scot said.
"I didn't turn up. Ronnie did nothing out of the ordinary but the worst thing was that I didn't play well.
"I always seem to have good matches against Ronnie but this was quite poor, it was a real surprise."