NEW YORK (Reuters) - Stock index futures rose on Monday, tracking European shares higher on hopes Spain would soon request a bailout. Equities are coming off their worst week since June, caused mainly by a discouraging start to the U.S. earnings season, especially by banks. That group will be in focus Monday with results from Citigroup Inc . Spain could ask for financial aid from the euro zone next month, euro zone officials said, and if it does, the request would likely be dealt with alongside a revised loan program for Greece and a bailout for Cyprus in one big package. ...