An elderly man suffered a cut to his head after getting hit by Justin Rose's drive during the Scottish Open this afternoon.

The 2013 US Open champion unleashed a tee shot on the par-five 16th hole, but his effort strayed left and connected with the spectator.

Rose told The AP after the incident that a young golf fan fainted at the sight of blood pouring from the man's head, but has since recovered.

"It's an elderly gentleman so it's not nice, but he took it like a trooper," said Rose. "He was talking to me and that's reassuring."

Rose hit a four-under 66 in the second round in Gullane.