Hammel, 31, had a breakout year in 2012, helping the Orioles make the postseason. The right-hander went 8-6 with a 3.43 ERA in 118 innings over 20 starts. Hammel took a step back in 2013, finishing with a 7-8 record and 4.97 ERA in 26 appearances. He was on the disabled list during the season with tenderness in his right forearm.
The Cubs have yet to confirm the deal.
Plenty of others news occurred throughout the league. Here's a look at some of the top stories:
• The Royals signed relief pitcher Aaron Crow to a one-year, $1,475,000 million contract to avoid arbitration. He asked for $1.7 million, while the Royals offered $1.28 million, the same salary he earned in 2013.
• The Marlins added veteran Reed Johnson into their mix of outfielders, signing him to a Minor League deal with an invitation to Spring Training. Johnson played in 74 games for the Braves last season.
• Veteran shortstop Alex Gonzalez, who would enter his 16th season, signed a Minor League deal with the Orioles that includes an invitation to Spring Training. He spent the last two seasons with the Brewers, but appeared in only 65 games.
• Roger Bernadina became the Reds' latest Minor League signing, as the club invited the outfielder to Spring Training as a non-roster player. If he makes the team, Bernadina will earn a $1 million salary in 2014.
Quinn Roberts is a reporter for MLB.com This story was not subject to the approval of Major League Baseball or its clubs.