LEVERKUSEN, March 12 — Arsenal’s eight-game winning run in the Champions League came to an end as they needed an 89th-minute penalty from substitute Kai Havertz to rescue a 1-1 draw at Bayer Leverkusen in their last-16 first leg yesterday.

Former Leverkusen player Havertz converted the late spot kick to cancel out Robert Andrich’s 46th-minute header for the hosts, marking the first time this season that quadruple-chasing Arsenal had fallen behind in Europe’s elite competition.