How does it work?Thirty-six sides entered into the new "league phase" and now just four remain with a month-and-a-half to go in the UCL campaign.Barcelona, Paris Saint-Germain, Arsenal, and Inter Milan are through to the semifinals,

How Inter could line up for the first leg of their Champions League semifinal clash with Barcelona on Wednesday.

The fear that Lamine Yamal provokes in defenders when he gets the ball on Barcelona's right flank has inevitably conjured up comparisons to a young, floppy-haired Lionel Messi. Now, Barcelona 17-year-old star will face one of the very few teams that Messi never could score against when Inter Milan visits on Wednesday in the opening game of their Champions League semifinal.