CHICAGO (Reuters) - A portfolio manager for Yahoo Inc's (YHOO.O) third-largest institutional shareholder, Legg Mason Capital Management, said on Friday he is not sure if he will support activist investor Carl Icahn's board slate.

A portfolio manager for Yahoo Inc's third-largest institutional shareholder, Legg Mason Capital Management, said on Friday he is not sure if he will support activist investor Carl Icahn's board slate.

A portfolio manager at Legg Mason Capital Management, Yahoo Inc's third largest shareholder, said on Friday he is not sure if he will support activist investor Carl Icahn's board slate.

A portfolio manager for Yahoo Inc's third-largest institutional shareholder, Legg Mason Capital Management, said on Friday he is not sure if he will support activist investor Carl Icahn's board slate.

A portfolio manager at Legg Mason Capital Management, Yahoo Inc's third largest shareholder, said on Friday he is not sure if he will support activist investor Carl Icahn's board slate.

Yahoo investors are showing more interest in an alternate board slate proposed by billionaire Carl C. Icahn that was first formed to deliver the company to Microsoft in a now-defunct buyout.

Bill Miller, the star portfolio manager at Legg Mason Capital Management, has not yet decided whether to support a dissident board slate at Yahoo Inc backed by billionaire investor Carl Icahn.

Billionaire investor Carl Icahn has elected to move ahead with plans to run a dissident board slate at Yahoo Inc , sources familiar with the matter told Reuters on Wednesday.

Carl Icahn has decided to fight a proxy battle with Yahoo and file a full board slate, Reuters is reporting, citing sources. The names could be announced as soon as tonight according to the report.