There were no upsets as the four big names eased their way past the challengers to book their places in the semi-finals of the second event in the World Series of Snooker.

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Graeme Dott will take on John Higgins, while Stephen Maguire meets Shaun Murphy in the last four after they cruised past their unheralded opponents in Berlin.

Higgins, however, needed a break of 61 in the deciding frame to secure his 4-3 victory over Lasse Munstermann of Germany.

Murphy whitewashed German Patrick Einsle 4-0, Maguire hammered Hans Blanckaert of Belgium by the same scoreline and Dott eased past Kiwi Chris McBreen 4-1.

Twice world champion Higgins, who is co-promoter of the World Series with his manager, Pat Mooney, won the first event of the new tour in Jersey last month.