Pep Guardiola witnessed a familiar sight on Wednesday evening. This time, however, he wouldn't have gotten much joy out of it.
Lionel Messi recorded his seventh career Champions League hat trick - two more than closest competitor Cristiano Ronaldo - welcoming his former boss back to the Camp Nou with a clinical display in the day's marquee contest against Manchester City.
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The tally, courtesy of another City error, gave the Blaugrana a commanding 3-0 lead.