By Liam Llewellyn MLS commissioner Don Garber couldn’t help but aim a sly dig at Cristiano Ronaldo when discussing the impact of Lionel Messi’s arrival at Inter Miami. For the past 15 years, Messi and Ronaldo have jostled for the title of best footballer alive, and their rivalry has summarised a generation of football. The superstar duo have collectively won numerous league, titles, Champions League crowns and Balon d’Or win, but the Argentine grabbed the advantage after leading Argentina to World Cup glory in December 2022, scoring seven goals in the process. While delivering his annual State…