...+ On July 20, 2016, S&P Global Ratings lowered its long-term foreign currency sovereign credit ratings on the Republic of Turkey to '##' from '##+' and revised the outlook to negative from stable. + We are affirming our '###-' long-term corporate credit rating on Turkcell, as we believe it will continue to demonstrate robust operating performance and solid credit metrics, as well as a solid liquidity profile. + However, we are revising our outlook on Turkcell to negative from stable because we consider that the rating on Turkcell is now constrained by the outlook on the sovereign. STOCKHOLM (S&P Global Ratings) July 22, 2016-- S&P Global Ratings today revised the outlook to negative from stable on Turkish mobile telecommunication operator Turkcell Iletisim A.S. (Turkcell). At the same time, we affirmed our '###-' long-term corporate credit rating on the company. The outlook revision follows our downgrade and outlook revision on the Republic of Turkey (see "Republic of Turkey Foreign Currency...