Coughlin (pectoral) reverted to the Giants' practice squad and was placed on the team's practice squad injured list Monday, Dan Salomone of the Giants' official site reports.
Coughlin is expected to miss "months" after sustaining a pectoral injury during Sunday's 28-6 loss to the Vikings, Ralph Vacchiano of Fox Sports reports.
Coughlin (pectoral) has been downgraded to out after leaving Sunday's game against the Vikings, Dan Salomone of the Giants' official site reports.
Coughlin (lower body) wasn't on the Giants' injury report Wednesday ahead of Sunday's Week 1 matchup with the Vikings.
Coughlin (lower body) did not practice Thursday, Pat Leonard of the New York Daily News reports.
Coughlin (shoulder) was a limited participant at practice Wednesday, Ralph Vacchiano of Fox Sports reports.
Coughlin (hip) was estimated as a full participant in Thursday's practice, Dan Salomone of the Giants' official site reports.
Coughlin (hip) has been ruled out for the remainder of Sunday's game against the Patriots, Dan Duggan of The Athletic reports.
Coughlin might play a starting role with Micah McFadden out against the Dolphins on Sunday, Dan Duggan of The Athletic reports.
Coughlin (ankle) was a participant in recent OTAs, Dan Salomone on the Giants' official site reports.