Sandro Schwarz is to become Hertha Berlin head coach in succession of Felix Magath, with the deal to be announced by the Bundesliga club next week. Kicker sports magazine said late Thursday that Hertha and Schwarz have agreed terms. Schwarz, 43, is under contract at Dynamo Moscow until 2024 but according to Kicker will end it after they have played the Russian Cup final on Sunday against cross-town rivals Spartak. Kicker said Schwarz would then return to Germany and officially be named Hertha helmsman next week. Schwarz has coached in the Bundesliga before, at Mainz 2017-2019. At Hertha, he su…