Joost Luiten shoots 5-under 65

ZANDVOORT, Netherlands -- Defending champion Joost Luiten fired a 5-under-par 65 to take a shared clubhouse lead at the KLM Open after a first round interrupted when Fabrizio Zanotti was hit on the forehead by a wayward tee shot on Thursday.

Zanotti was driven off the course in an ambulance to be examined at a nearby hospital after being hit while playing the 16th. He later tweeted he was discharged from the hospital and would be taking "a couple of weeks off."

Luiten went on a strong run after the suspension, shooting three birdies and an eagle over his last seven holes.

"That's how I would like to start every tournament," Luiten said.

Jamie McLeary of Scotland was also at 5 under before his round was suspended by darkness with two holes to finish early Friday.