i got some injured players seven to be exact. should sign players or dont? for a EX. FB since i got one should i sign another since he injured

If a player is probable, I usually will play them. If your FB is injured, you can usually slide a TE into his spot pretty effectively until he's healthy. I usually don't sign to replace injured players unless it's a fairly serious injury or most of my depth is injured; instead I try to place other players into the position as a stop gap.

thanks