BY MIA LAMAR AND NATHALIE TADENA
Standard Poor's Ratings Services downgraded its sovereign-credit rating on Argentina one notch further into junk territory, noting the country could face increasing debt-management risks.
SP lowered Argentina's rating to B-minus, six levels into junk territory. The outlook is negative.
Earlier Tuesday, fellow ratings firm Fitch Ratings placed Argentina's junk-level sovereign-debt rating on review for a downgrade, citing increased uncertainty about the country's ability to pay its external debt. Fitch currently rates Argentina ...