Injury rules clarification.

Is there a rule for how long a player can take when claiming an injury during a team match in a tourney? I’ve never seen faking an injury before yesterday, but playing a team that likes to stall and take their time to get in the other teams head. Talking 45 seconds from lining up to actually releasing the ball. Their opponents had huge momentum and all of the sudden their star player had an injury. Went to the tournament staffed PT for nearly 5 mins. Is there anything in the rules to prevent this?