Today saw the match. One team plays 3W-2(DMC)-3W-1-1.
In the middle of 2-nd half (score 1-1) hid DC was injured. No substitution was done. So the formation appeared as 2(DR+DL)-2(DMC)-3W-1-1. He lost 1-2. But the game continued to be equal !!! He really didn't lost possession. Does it means that playing with 2 defenders is "legal" since today ???