Fantasy Impact - Although it is more than likely he will save a few games for the Cubs, he will not be valuable at any other point in the year. He may be a nice free agent find if he can secure the closer's role for an extended period of time.
Predictions - 1-2, 56 IP, 47 H, 22 ER, 20 BB, 60 K (3.54 ERA, 1.20 WHIP)
For more info on the signing see: http://mlb.mlb.com/news/article.jsp?ymd=20131216&content_id=66016028&vkey=pr_chc&c_id=chc
Image citations in order of page: http://fansided.com/2013/12/16/chicago-cubs-sign-reliever-wesley-wright-1-year-contract/