This deal has been rumored and discussed here several times, and now, Brian Matusz is a Cub, according to Mark Gonzales in the Tribune:
The Chicago Cubs signed left-hander Brian Matusz to a minor league contract. Matusz, 29, was the fourth overall pick in the 2008 draft and posted a 27-41 record and 4.85 ERA over parts of eight seasons with the Baltimore Orioles. Matusz was traded last month to Atlanta, who released him recently.
Matusz was an effective lefty reliever for the Orioles from 2013-15; in those three years he posted a 3.32 ERA, 1.220 WHIP and 3.50 FIP in 186 appearances covering 151⅔ innings. He walked 53 and struck out 159 in those games.
He pitched poorly this year for Baltimore (seven games, six innings, 3.000 WHIP, 11 hits and seven walks, only one strikeout). This suggests he might not be healthy; the Braves released him just nine days after the trade, though Atlanta likely wanted the competitive balance pick in this year's draft more than they wanted Matusz.
Matusz will likely head to Triple-A Iowa. If he shows well enough there he could wind up in the Cubs' bullpen sometime in the near future. The Cubs had pretty good luck last year with another pitcher released by the Braves -- Trevor Cahill -- so maybe this one will work out, too, once Matusz undergoes Bosmosis.
It's a decent move with no risk, as it's a minor-league signing. He'll have to change that number, though, if he makes the big-league roster.