Skokie, Ill. ? Chicago Bears defensive lineman Tank Johnson was sentenced Thursday to four months in jail for violating probation in a 2005 gun case.

Johnson immediately was taken into custody. He could have been sentenced to up to a year behind bars. Johnson, who pleaded guilty to violating his probation, also must pay a $2,500 fine.

Johnson was arrested on misdemeanor weapons charges Dec. 14 after police raided his home in the Lake County town of Gurnee, about 40 miles northwest of Chicago, and found six unregistered firearms.

At the time, he was on probation in a November 2005 Cook County case. In that case, he’d pleaded guilty to a misdemeanor charge stemming from an arrest in which a nightclub valet reported seeing Johnson with a handgun in his sport utility vehicle.

Johnson has been under house arrest since the raid, but was permitted to attend practice and travel to Miami for the Super Bowl.

Eagles, Curtis agree

Philadelphia – Wide receiver Kevin Curtis agreed to a six-year contract with Philadelphia on Thursday, giving the Eagles a potential replacement for Donte Stallworth. Curtis’ deal could be worth up to $32 million and includes $9.5 million in guaranteed money.

A third-round pick in 2003, the 28-year-old Curtis spent his first four seasons with the St. Louis Rams serving mostly as the No. 3 wideout behind Torry Holt and Isaac Bruce. He has 136 receptions for 1,714 yards and 12 touchdowns in 51 games. Curtis had his best season in 2005 when Bruce missed five games, catching 60 passes for 801 yards and six TDs.