Is spreading arms wide and preventing the other team player behind you to move a foul? Is that some kind of illegal screen?
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4Welcome to Sports exchange. It appears that you have not done enough research towards this question. Please let us know what you've found – alamoot Sep 4 '17 at 18:02
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What's wrong with the question? – A D Sep 24 '17 at 7:14
Yes, extending your arms while setting a screen is classified as an illegal screen.
http://videorulebook.nba.com/archive/illegal-screen-pickn-roll-screener-extends-arms-2/
