The four-year veteran, who had never missed a game before this season, was placed on injured reserve at mid-week after breaking his hand. Now the NFL has reached inside his wallet for $5,000, the amount of a fine levied against him for a late hit on Chicago Bears quarterback Rex Grossman last Sunday.
In the same game, Chicago rookie defensive end Mark Anderson was fined $5,000 for an unnecessary roughness call on a sack of Rams' quarterback Mark Bulger.
Tinoisamoa termed the week "a double whammy" and said he will consider appealing the fine.
The call against Tinoisamoa came in the first quarter of the Chicago victory, on a first-and-10 play from the Chicago 45-yard line. Grossman completed a 21-yard pass to tailback Thomas Jones and Tinoisamoa hit him a split second after he released the ball, resulting in a 15-yard personal foul penalty.
The combination of the completion and the foul moved the ball to the Rams' 19-yard line, but the drive ended when kicker Robbie Gould missed a field goal.
Anderson was fined for hitting Bulger in the back of the head as he sacked him for a nine-yard loss in the fourth quarter. The play also resulted in a 15-yard penalty.
It is not known if Anderson plans to appeal the fine.
Senior writer Len Pasquarelli covers the NFL for ESPN.com.