Round of 16 places are on the line in the second legs of the UEFA Champions League knockout phase play-offs. One goal is all that separates the sides in six of the eight UEFA Champions League knockout phase play-off ties so the second legs promise plenty of drama.

Bayern's Leroy Sane, right, is congratulated by Bayern's Harry Kane, center, after scoring his sides second goal during the German Bundesliga soccer match between Bayern Munich and Werder Bremen at the Allianz Arena in Munich, Germany, Friday, Feb. 7, 2025. (AP Photo/Matthias Schrader) AP

Wednesday's UEFA Champions League action was all about tight margins, with four teams carrying a one goal advantage into next week's second leg of the knockout phase playoffs after tightly contested matches.