Mickelson plays on amid news of U.S. probe into possible insider trading

If golf star Phil Mickelson is concerned by a federal probe into possible insider trading involving him, billionaire investor Carl Icahn and Las Vegas gambler William Walters, he didn`t show it on Saturday.

Icahn resigns from Yahoo! board

Billionaire investor Carl Icahn has resigned from his position on the board of Yahoo!, saying the US Internet giant no longer needed an "activist" director like him.