Bayer 04 Leverkusen vs 1. FC Union Berlin

Bayer Leverkusen announced their arrival under new coach Carles Martínez Novell with a ruthless 4-0 demolition of Union Berlin, needing just one minute to take the lead and never looking back. It was as one-sided as home wins get, with the hosts piling on 21 shots to Union's five and racking up double the possession. Ezequiel Fernández struck inside the opening minute after a deflected cross fell kindly, before Facundo Medina headed home a second from a Gutiérrez delivery just before the break. Patrik Schick added a third early in the second half from a Quansah through ball, and Ibrahim Maza curled in a fourth to complete the rout. Union's night was made harder by yellow cards for both starting center-backs, Felix Uduokhai and Zeno van den Bosch, who struggled to contain the constant pressure. The result gives Leverkusen their first win of the campaign after an opening-day shock defeat to Elversberg, a big statement under their new manager. For Union Berlin, it's a second straight loss to open the season under Mauro Lustrinelli, leaving them searching for answers before facing Schalke next.