Nuclear Chief Says His Trip to Iran May ‘Pave Way’ for Deal (1)

The head of the world’s atomic watchdog said his trip on Saturday to Tehran could “pave the way” to reviving the Iranian nuclear deal, an agreement that would return the country’s oil exports to global markets.

IAEA chief Rafael Mariano Grossi’s optimism was echoed by diplomats in Vienna, where they’ve been wrangling over the final few outstanding issues.

Mikhail Ulyanov, Russia’s envoy, said the sides were “on the finish line” with a deal possible within 48 hours. Other negotiators also said privately they expected an agreement by early next week.

Iran has demanded the International Atomic Energy Agency conclude ...