The 45 1 midfield grab is very effective. The compact position makes the whole team connect orderly, and it is not easy to be successfully countered. The attack power is also quite amazing, and it is easy to organize an effective counterattack in the middle. I think this is the best defensive formation at present, but ordinary players don't know how to use it. Only players with mature tactical thinking know how to control this formation. So people who use this formation are usually experts. If you want to restrain this, you can only rely on technology, so that you can see all the way, see through the audience at a glance, and play fast and smooth cooperation, so that your opponent can't win. From the formation analysis, 45 1 lacks the flank threat, and it is enough to use three central defenders, which means that 343 and 352, two formations with dense frontcourt, can best fight! "I hope my answer is helpful to you, and I wish you a happy game!