Man City can thank Lionel Messi for supercharging the value of one of their biggest ever investments. Messi has been heavily linked with City several times over the years, most concretely in 2021 following his exit from Barcelona. But that move, which would have reunited him with Pep Guardiola, never materialised and the Argentine chose Paris Saint-Germain instead. He has since moved toInter Miami, where he has raised the global profile of the MLS and propelled the David Beckham-backed club to the top of the Eastern Conference as things stand. And that move has had a knock-on effect which coul…