“This has been one of the most memorable Champions League group stages in history, and Matchday Five will be a pivotal moment for several big clubs. It could see the elimination of champions from England, Holland, Russia, Portugal, and Italy, while reigning champion Chelsea has a nerve-wracking away game to negotiate too. The previous Matchdays have provided late drama, superb goals, surprising shocks and stars of the future. Here are some storylines to watch from Matchday Five…” SI