Venerable Messi joined by the youngest player in knockout history

The great man is bathing in contentment after enjoying his perfect winter in Qatar, and is presumably perfectly relaxed - arguably too relaxed - as he seeks to collect a fourth Champions League medal.

Joining him in the PSG midfield is a man (sort of) born in 2006 - yes, you read correct. French youngster Warren Zaire-Emery is the, the twitter machine tells us, the youngest player in Champions League knockout history. Mbappe, still feeling his way to back to fitness, is on the bench.