The Chicago Cubs might have swept the New York Mets right into a fire sale Wednesday night.

At the very least, they reportedly will have a former Mets All-Star in their clubhouse Thursday night, when the visiting Cubs will look to complete a sweep of free-falling New York in the finale of the four-game set.

Left-hander Matthew Boyd (2-1, 6.00 ERA) is slated to be activated off the injured list to start for the Cubs against right-hander Freddy Peralta (5-6, 4.83).

The Cubs rode Dansby Swanson's big day and night to a doubleheader sweep Wednesday, earning a 10-3 win in the opener before recording a 10-5 victory in the nightcap.

The Mets responded to their latest bottoming out by reportedly trading left-handed pitcher David Peterson to the Cubs later Wednesday night in exchange for minor league infielder Cole Mathis. Neither team had confirmed the move as of early Thursday morning.

Peterson, who made the National League All-Star team last season, is just 3-6 with a 6.09 ERA this season while bouncing between the rotation and long relief. He likely will move into the rotation for the Cubs, who still will have three starters -- Edward Cabrera, Cade Horton and Jameson Taillon -- on the injured list when Boyd (knee) is activated.

The Mets have lost five straight and seven of their last nine to fall to 34-46. New York is in last place in the National League East and nine games behind the Cubs and St. Louis Cardinals, who occupy the NL's final two playoff spots.

The Mets squandered a 3-0 lead in the opener and led 3-1 in the nightcap, when they committed six errors -- their most since a six-error game against the Miami Marlins on Sept. 1, 2014.

"Embarrassing overall - the whole day, the two losses, but just the way we played overall," Mets manager Carlos Mendoza said. "That last game, unacceptable. Obviously, everybody's (mad). Everybody's frustrated."

The emotions were far lighter in the Chicago locker room. The sweep improved the Cubs to 5-1 in their past six games, during which they've outscored the Mets, Colorado Rockies and Toronto Blue Jays 59-30.

"I think that over the last week-plus, you're seeing what this group is capable of, what we know we can do, and its been fun to be a part of," Swanson said. "I know we can be process-driven, but sometimes, it's nice to be validated and see the results as well."

Swanson produced plenty of impressive results Wednesday, when he might have revived his season. The shortstop finished with a team-record 11 RBIs in the twinbill -- seven RBIs via a three-run homer and a grand slam in the opener and four RBIs via a trio of hits in the nightcap.

Swanson has 15 RBIs in the first three games of the series -- nearly half the 31 RBIs he had in his first 73 games of the season before heading to New York. He raised his overall average Wednesday to .202 -- the first time he has been above .200 since May 10.

"He's a star for a reason," Cubs second baseman Nico Hoerner said. "And I'm so excited to see what the rest of the season has in store for him."

Boyd will make his first start since May 3, when he earned the win after allowing two runs over six innings as the Cubs beat the Arizona Diamondbacks, 8-4.

Three days later, Boyd tore the meniscus in his left knee while playing with his children. He also battled a sore left shoulder earlier this month before tossing four innings of two-hit scoreless ball in a rehab start for Single-A South Bend last Saturday.

Peralta took the loss in his most recent start last Saturday, when he gave up 10 runs over 2 2/3 innings as the Mets fell to the Philadelphia Phillies, 15-3.

Boyd is 2-0 with a 3.86 ERA in three career starts against the Mets. Peralta is 9-4 with a 3.30 ERA in 23 games (18 starts) against the Cubs.

The Thursday game is the final of seven contests between the two teams this season. The Cubs have won the first six.

-- Field Level Media