US STOCKS-Futures drop on worries over Ukraine, deal failures
* NATO says Russia could be readying Ukraine invasion
* Sprint, T-Mobile shares fall as Sprint drops bid
* Cognizant, Groupon shares down after results
* Futures off: Dow 60 pts, S&P 7 pts, Nasdaq 21 pts
NEW YORK, Aug 6 (Reuters) - U.S. stock index futures fell on Wednesday, with S&P e-minis at a more than two-month low, on worries of an escalation of the conflict in Ukraine and as key merger and acquisition deals fell through.
* NATO said Wednesday Russia has amassed around 20,000 combat-ready troops on Ukraine's eastern border and could use the pretext of a humanitarian or peace-keeping mission to invade.
* A further souring of relations between Russia and the West could hurt the European economy, already struggling to recover from a deep recession. Data on Wednesday showed German industrial orders dropped in June at their steepest rate since September 2011 and Italy's economy unexpectedly slid back into recession in the second quarter.
* Sprint dropped its bid for carrier T-Mobile U.S. after regulatory resistance showed no signs of softening despite months of lobbying. Sprint shares fell 13.9 percent and T-Mobile dropped 7.8 percent in heavy trading before the opening bell.
* Rupert Murdoch's Twenty-First Century Fox pulled its $80 billion offer to buy Time Warner Inc that would have created one of the world's largest media conglomerates. TWX shares slid 11.1 percent in premarket despite reporting better-than-expected results, while Fox jumped 8 percent. Continuación...