Bayer Leverkusen star Florian Wirtz was pinching himself after scoring a hat-trick off the bench to help his side crush Werder Bremen 5-0 and win a first ever Bundesliga title. The 20-year-old, set for a key role for Germany at the home Euros in June given his Leverkusen form, missed the 2022 World Cup with a knee ligament injury but has bounced back in stunning style for his club. It’s indescribable,” he told DAZN after a massive pitch invasion by ecstatic fans as Leverkusen ended Bayern’s Munich’s 11-year run as German champions. “I can’t quite believe it, I need some time. “It was great out…