Another FIFA 18 update has been released,. From we want can tel it only packs pretty small change, but actually fixes a major exploit. Until now, it was possible to trick AI-controlled opposition into fouling you if you went into the corner and shielded the ball. Thihis could be utilized to get enemy players sent off and to hence win easily in Squad Battles and boost your rewards significantly. Now the issue has be addressed.
The patch notes for the latest update state the developer has “removed the chance for the CPU AI controlled player to receive a second yellow card when trying to push or pull an opponent, with the exception of an attacker who is through on goal and 1 on 1 with the keeper.” This doesn’t apply to human controlled players, though.