The race to invest in Facebook is in its home stretch, reports NYP, with Microsoft (NSDQ: MSFT) and Google (NSDQ: GOOG) duking it out…the investment deal might be announced in the next day or two, the story says. Each are vying for a 5-10 percent stake, and the valuation could reach the fabled pre-money valuation of $10 billion-$15 billion. On the high side, that means Microsoft or Google would have to come up with $1.5 billion for a 10 percent stake or $750 million for a 5 percent stake.

NYP says it looks like Google might have the upper hand, and that Tim Armstrong, the head of advertising for the company, is leading Google’s negotiations.