Bayern Munich head coach Pep Guardiola has claimed that he expects Douglas Costa to continue to improve after making an impressive start to life in the Bundesliga.

Costa, who arrived from Shakhtar Donetsk earlier in the transfer window, capped a fine display with a goal in last week's 5-0 triumph over Hamburger SV last Friday, but Guardiola believes that there is much more to come from the Brazilian.

"This is just the beginning," the Spaniard told reporters. "So far Costa has done well. However, we did not sign him just for one week, but for four years."

Bayern take on Hoffenheim on Saturday afternoon.