Michael Olise and Eberechi Eze were team-mates for three seasons at Crystal Palace
While Arsenal's Champions League meeting with Bayern Munich is a match between two of Europe's in-form clubs - both boasting 100% records in the competition, both six points clear domestically - it is also a reunion of, and friendly rivalry between, two key forwards.
For either side, victory at the Emirates would bring a top-eight league stage finish and guaranteed place in the last 16 into view, while maintaining a superb start to the domestic season. The Gunners have lost only once across all competitions, Bayern are unbeaten.
But the match will also have personal significance for two of Europe's most creative and in-form forwards, who come up against each other just 18 months after terrorising Premier League defences in unison.
Arsenal's Eberechi Eze and Bayern's Michael Olise are firm friends from their three seasons together at Crystal Palace - a relationship that was strengthened through their love of chess.
