SEVILLE, Spain (AP) -- Marcel Siem shot a 5-under 67 Friday to lead by one stroke at the halfway point of the Andalucian Open.
The German hit eight birdies offset by three bogeys, including one at the 18th, to total 9-under 135.
"I was pretty calm, which is unusual for me," Siem said. "I said to my caddie that I felt like Retief Goosen -- I don't have any emotions."
Jean-Francois Lucquin of France (69) and Graeme Storm (66) of England were a stroke back. Local favorite Carlos del Moral (67), David Drysdale of Scotland (67) and Sweden's Michael Jonzon (68) were all at 7 under.
Scottish rookie Chris Doak (73), the first-round leader, is a further shot back in a group that includes Miguel Angel Jimenez of Spain (65) and Colin Montgomerie (72).
Montgomerie, who is playing in his 500th European Tour event, had an inconsistent day with five birdies and five bogeys and even had words with a photographer at the Real Club de Golf de Sevilla.
"I played very badly, and 72 is what you get when you play that way," said Montgomerie, who is looking for his 183rd top-10 finish and first since last June.