CHICAGO -- The Cubs have agreed with free-agent pitcher John Lackey on a two-year contract, according to a source familiar with the situation.

A source told ESPN's Buster Olney that the total value of the contract is $32 million. The team has yet to confirm the deal, which is contingent on Lackey's passing a physical.

In signing Lackey, the Cubs forfeit their first-round pick because he was given a qualifying offer by the Cardinals before departing via free agency.

Fox Sports first reported the signing.

Cubs president of baseball operations Theo Epstein "guessed" earlier on Friday that his team would sign a free-agent pitcher and also trade for one this offseason.

The agreement with Lackey presumably ends any conversations Chicago was having with former Cub Jeff Samardzija, whom Epstein said Friday the team was in "dialogue" with. Sources told ESPN.com's Jayson Stark that the bidding for Samardzija might have gone higher than the Cubs were comfortable with.

Not Lack-ing in division Only Jake Arrieta had a better ERA vs. NL Central opponents last season than John Lackey (minimum 10 starts). The Cubs now have the top 3 pitchers on this list. Pitcher ERA vs. Central in '15 Jake Arrieta 1.88 John Lackey 2.13 Jon Lester 2.48 -- ESPN Stats & Information

Lackey, 37, had a 2.77 ERA in 33 starts last season for the St. Louis Cardinals, throwing 218 innings and allowing 211 hits and 53 walks. He shut out the Cubs over 7⅓ innings in Game 1 of the division series and then, pitching on three days' rest, took a no-decision in Chicago's series-ending Game 4 victory.

In 2015, Lackey threw his most innings in a season since 2007 and passed the 200-inning milestone for the first time since undergoing Tommy John surgery and missing all of 2012.

Lackey made $507,500 last season because of a clause in his previous contract with the Red Sox. In signing the two-year, $32 million deal, his average annual value will be 31.5 times larger than it was in 2015.

Lackey figures to slide into the No. 3 spot in the rotation behind Cy Young Award winner Jake Arrieta and Jon Lester. Righties Jason Hammel and Kyle Hendricks would occupy the Nos. 4 and 5 spots, pending other deals by the Cubs.

John Lackey is staying in the National League Central, joining the Cubs on a two-year deal, according to a source. AP Photo/Paul Beaty

Lackey joins former teammates Lester and David Ross in Chicago. The trio played for the Boston Red Sox when they won the World Series in 2013.

"One of the best competitors I've ever been around, and I'm not just saying that," Ross said Friday afternoon. "He's going to bring a toughness to our team that is going to make everybody better."

Cubs manager Joe Maddon was on the coaching staff with the Los Angeles Angels when Lackey broke into the league in 2002 and won his first World Series ring.

ESPN Stats & Information contributed to this report.