8:00am: Jim Bowden of ESPN and MLB Network Radio tweets that the trade has officially been approved by MLB. — MLBTR And the details: ESPN's Buster Olney reports (via Twitter) that the Yankees will pay $6.8MM of the roughly $24.5MM remaining on Alfonso Soriano's contract — $1.8MM in 2013 and $5MM in 2014. The Cubs will choose from a short list of pitching prospects …