According to sources close to the situation, Yahoo will officially close the multi-billion-dollar sale of half its assets in China's Alibaba Group in one week. Sources said the deal is set to be announced next Wednesday, in which the Chinese Internet giant will pay the Silicon Valley company $7.6 billion to buy back 20 percent of Alibaba. Yahoo still owns another 20 percent. Yahoo will get $7.1 billion in the transaction, as well as a $550 million payment related to the ending of licensing fees that Alibaba has paid annually to Yahoo. It's a huge return from when Yahoo co-founder Jerry Yang led a $1 billion investment in the then-fledgling Alibaba seven years ago, with a belief in its CEO and co-founder Jack Ma. But once-cordial relations between the companies became tense in the ensuing years, as Ma sought to lessen Yahoo's 40 percent ownership. After many public kerfuffles, Yahoo finally agreed earlier this year to sell half its stake . It still holds 20 percent, which could eventually reap even larger returns once the fast-growing Alibaba goes public in several years. Yahoo is required to sell 10 percent at that IPO and must sell the rest after that. Still, Yahoo is getting a pile of money now. After taxes, that gives new CEO Marissa Mayer about $4.5 billion to use in some as yet undetermined way. But it will most likely be for a series of acquisitions to try to reinvigorate the long-troubled company. Yahoo's board and later its