Dec 3 (Reuters) - Chinese e-commerce giant Alibaba Group Holding Ltd is unlikely to be interested in buying Yahoo Inc's core business, the Wall Street Journal reported.

Yahoo's board, in a three-day meeting that started on Wednesday, is weighing a sale of the company's Internet business, Reuters reported on Tuesday, citing a person familiar with the matter.

Board members are also expected to discuss the details of the planned spinoff of Yahoo's 15 percent stake in Alibaba, worth more than $30 billion.

Alibaba will be interested in repurchasing its shares from Yahoo only at a steep discount, the WSJ said on Thursday, citing a person familiar with the matter.

Alibaba and Yahoo were not immediately available for comment.

(Reporting by Anya George Tharakan in Bengaluru; Editing by Kirti Pandey) ((anyageorge.tharakan@thomsonreuters.com; within U.S. +1-646-223-8780; outside U.S. +91 80 6749 7118;; Reuters Messaging: Reuters Messaging: anyageorge.tharakan.thomsonreuters.com@reuters.net))