In/under the shadow of
Definition 1 of 3
Pro Tip 1/3Problem Focus
Used when attention is on the negative impact of one's issues or difficulties. 
Despite his efforts, he remained under the shadow of his debts, unable to fully succeed.
Pro Tip 2/3Negative Consequence
Implies that the problem has serious negative effects on the person or situation. 
The whole team is playing under the shadow of last year's defeat.
Pro Tip 3/3Avoidance Impossible
Suggests that dealing with the issue cannot be put off or escaped. 
They worked under the shadow of the new regulations that affected their project.