Dive - An action by a player pretending that they
A dive isn't a player.
Disallowed goal -
The timeWhen the ball
A goal isn't a time.
Actually, this happens a few times. You could delete "The time" from all definitions starting with "When ..."
It really should read, "A goal scored when the ball ...", but colloquially, "When ..." works.
Drop back - Players playing for a while
Are the players a drop back, or is this an action? My football knowledge doesn't permit me to make a call. Perhaps, as in DIVE, "an action taken by players who ..." or "A move by players ..."
Dummy - Pretending you are going ...
The problem here is defining a noun, "Dummy" as a verb, "pretending" (OK, it might be a gerund). Is the player the dummy, or is the action a dummy? If the latter, how about, "A move by a player who pretends to be going ..."
I hope you don't consider these suggestions too trivial. But you're putting a lot of effort into it, so I guess you might as well make it sound good as well as being very informative.