Home kit as worn in the last season of the Pep Guardiola era when Bayern eased to their fourth straight Bundesliga title. Famously Robert Lewandowski scored 5 times in 9 minutes against Wolfsburg, and despite a stunning comeback against Juve, Pep could not seal an elusive European title after losing out on away goals to Atletico at the semi-final stage. Costa made his debut as a starter on 1 August in the 2015 DFL-Supercup away to VfL Wolfsburg, crossing for Arjen Robben to open the scoring in an eventual 1–1 draw. He scored his first Bundesliga goal in his first Bundesliga game in a 5–0 win against Hamburger SV