MOSCOW, Aug 31 (Reuters) - The presidents of Russia and the United States will discuss Syria during a meeting on the sidelines of the G20 summit in Hangzhou, China, the Kremlin said on Wednesday.

"Beyond all doubt, we can suppose that one way or another a brief or more detailed exchange of views on the Syrian problem will certainly take place," Kremlin spokesman Dmitry Peskov told a conference call with journalists.

The summit will be held on Sept. 4-5.

(Reporting by Dmitry Solovyov; Editing by Alexander Winning) ((dmitry.solovyov@thomsonreuters.com;))