Paddy Power make Robert Karlssontheir 6/1 favourite to win the Portugal Masters after the first round.
He shares the lead with fellow Swede Johan Edfors (12/1 Ladbrokes) and Maarten Lafeber, 25/1 shot at bet365.
David Horsey is the best-placed Englishman on six under ( 33/1 with William Hill), whilst Irishman Paul McGinley can be backed at 45/1 with Paddy Power
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