Former world champions Raymond van Barneveld and Peter Wright were knocked out in round one of the German Darts Grand Prix.
Van Barneveld was the first of the two to fall with a 6-4 loss to Marcel Hausotter in Munich, while Wright then suffered a 6-3 defeat to Kim Huybrechts.
Gian van Veen and fellow Dutchman Michael van Gerwen, the top two seeds, will take to the oche in round two on Sunday, alongside fellow Premier League stars Jonny Clayton and Josh Rock.
The event, which concludes on Easter Monday, has a 48-player field and a top prize of £35,000.
Afternoon session
William O'Connor 6-2 Sebastian Bialecki
Ryan Joyce 6-1 Finn Behrens
Krzysztof Ratajski 6-3 Thomas Lovely
Niels Zonneveld 6-3 Adam Lipscombe
Karel Sedlacek 6-4 Cameron Menzies
Ritchie Edhouse 6-3 Kevin Troppmann
Andrew Gilding 6-4 Wessel Nijman
Patrik Kovacs 6-3 Joe Cullen
Michael Smith 6-2 James Hurrell
Dirk van Duijvenbode 6-2 Stephen Burton
Brendan Dolan 6-5 Cor Dekker
Kevin Doets 6-0 Anton Ostlund
Marcel Hausotter 6-4 Raymond van Barneveld
Kim Huybrechts 6-3 Peter Wright
Ricardo Pietreczko 6-5 Ian White
Niko Springer 6-5 Jan Schmidt
Afternoon session (1200 BST)
Ross Smith 6-2 Patrik Kovacs
Niels Zonneveld 6-1 Jermaine Wattimena
Karel Sedlacek 6-2 Damon Heta
Andrew Gilding 6-5 Daryl Gurney
Krzysztof Ratajski 6-5 Ryan Searle
Danny Noppert vs Ritchie Edhouse
Mike De Decker vs Dirk van Duijvenbode
Dave Chisnall vs Michael Smith
Evening session (1800 BST)
Luke Woodhouse vs Kim Huybrechts
Josh Rock vs Ryan Joyce
James Wade vs Kevin Doets
Jonny Clayton vs Marcel Hausotter
Michael van Gerwen vs Niko Springer
Nathan Aspinall vs Ricardo Pietreczko
Martin Schindler vs Brendan Dolan
Gian van Veen vs William O'Connor
Round three (1200 BST)
Evening session (1800 BST)
Quarter-finals
Semi-finals
Final
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