Philadelphia Eagles coach Andy Reid will leave the National Football League team for a month to deal with family issues, a decision that comes less than two weeks after two sons got into separate legal trouble on the same day.

The team said the leave of absence will last through mid-March.

Eagles president Joe Banner was to discuss the matter at a Monday afternoon news conference.

Reid, who doubles as the team's head of football operations, will miss the NFL scouting combine and the start of free agency if he does not rejoin the Eagles until the middle of next month.

Teams may begin voluntary off-season workouts March 19, but Reid will be back for the NFL draft April 28-29.

Garrett Reid, 23, tested positive for heroin after he caused a traffic accident Jan. 30, police said.

No charges have been filed, but prosecutors are looking at the case.

Britt Reid, 21, was arraigned on drug and weapons charges.

He is accused of pointing a handgun at another driver following a dispute and faces a felony charge of carrying a firearm without a licence as well as misdemeanour charges of lying to authorities, simple assault, making terrorist threats and possession of a controlled substance.