Lindsay Lohan ditched snowboarder lover Riley Giles after hooking up with single Oscar-nominated star Heath Ledger, according to reports.

The actress split with Giles - who she met in rehab - last week, supposedly so the actress could concentrate on her career.

But Australian magazine NW claims she dumped Giles after meeting Ledger in a New York club over Thanksgiving.

The magazine reports, "Lindsay and Heath hit it off straight away. When she left the club she started texting him straight away and they hooked up a few times while she was still in New York. They were meeting late at night for sex. It was purely physical."

Ledger has been single since splitting from fiancee Michelle Williams in September.

- Lindsay Lohan Pictures
- Heath Ledger Photos

(This news article provided by World Entertainment News Network)