The German didn't know that preferred lies weren't in operation...
Marcel Siem Disqualifies Himself After Preferred Lies Mix Up
After Lee Ann Walker's 58-stroke penalty at Senior LPGA Championship, we've seen another rules error in a professional event this week.
That's after Marcel Siem disqualified himself from the French Open when he realised he has incurred 10 penalty shots.
The German had completed nine holes at Le Golf National before realising that it wasn't preferred lies.
Another of his wins came at Le Golf National seven years ago at the 2012 Open de France - he won't be replicating that this week.
"I played the ball from the wrong place five times and conceded 10 penalty strokes. That was a little too much for me," Siem wrote on his Facebook page.
"Now I'm going to prepare myself for qualifying school in November to grab the full tour card back so that it's finally going forward again.
"Thanks for cheering and fingers crossed. Soon it'll bring something again, promise! I'll be back."
