Maddinson also copped a blow to the helmet last Friday but batted on and took part in the Blues’ six-wicket win over Queensland on Sunday.
“Nic began feeling unwell during the latter part of the final and subsequently failed a further concussion test after the match,” NSW team doctor John Orchard said.
“As a result, he has been withdrawn from the Sheffield Shield squad.
“Cricket Australia’s concussion policy requires that players are monitored, including follow-up tests for signs of concussion in the days after a knock to the head.”
Test players Steve Smith, David Warner, Peter Nevill, Josh Hazlewood, Mitchell Starc and Nathan Lyon have been included in a star-studded NSW squad.
Advertisement
Starc, who is set to return from a badly cut leg that required 30 stitches, will play a limited role in the match.
The left-armer will have strict bowling restrictions placed on him ahead of the next week’s firs Test, while he is also likely to field in the slips.
NSW 13-man squad: Steve Smith (captain), Doug Bollinger, Ryan Carters, Trent Copeland, Ed Cowan, Ryan Gibson, Josh Hazlewood, Moises Henriques, Nathan Lyon, Peter Nevill, Kurtis Patterson, Mitchell Starc, David Warner.