Last season's beaten semifinalists bring the curtain up on the Champions League league phase on Tuesday afternoon as Arsenal face off against Athletic Club in Bilbao.

Aside from the goals one of the storylines of the night was the debut of Alexander Isak, who made his first appearance for Liverpool since joining from Newcastle earlier this month.

Bayern Munich starting XI: Neuer (c) | Upamecano, Tah, Kimmich, Gnabry, Kane, Luis Díaz, Olise, Laimer, Stanišić, Pavlović Chelsea starting lineup (4-2-3-1): Sánchez | Cucurella, Chalobah, Tosin, Gus...