Cubs Land David Peterson From Mets to Patch Rotation Sport By lines June 25, 2026 The David Peterson trade sends the left-hander from the New York Mets to the Chicago Cubs. The Chicago Cubs completed the David Peterson trade on June 24. Chicago Cubs starters Edward Cabrera and Ben Brown hit the injured list that same day. Why Chicago Cubs Bought Low on a Struggling Lefty The Chicago Cubs sent infielder Cole Mathis to the New York Mets on June 24. Cole Mathis ranked as the Chicago Cubs No. 13 prospect. The trade followed a Chicago Cubs doubleheader sweep of the Mets at Citi Field. David Peterson, age 30, joins a Chicago Cubs rotation in crisis. David Peterson posted a 6.09 ERA across 16 New York Mets games this season. David Peterson started eight of those games over 68 innings. David Peterson struck out 63 batters and walked 30 for the Mets. That total works out to 8.3 strikeouts per nine innings for David Peterson. David Peterson carried a 3.85 FIP, over two runs below his own 6.09 ERA. That FIP gap points to bad luck rather than decline for David Peterson. David Peterson ranked in the league top 11% with a 52.9% ground-ball rate. A 52.9% ground-ball rate limits home runs for any contending rotation. The Chicago Cubs bet on David Peterson regressing toward his sharper underlying numbers. Injuries forced the Chicago Cubs hand before the July 31 trade deadline. Edward Cabrera (hamstring) and Ben Brown (neck) joined the Chicago Cubs injured list June 24. Justin Steele (elbow), Cade Horton (elbow), Jameson Taillon (hamstring) and Matthew Boyd (knee) preceded them. Six injured starters left the Chicago Cubs rotation thin during a playoff push. The New York Mets moved David Peterson hours after the Chicago Cubs swept a doubleheader at Citi Field. David Peterson logged a 3.85 FIP, the figure contenders chase at the deadline. Cole Mathis owns a 116 wRC+ across High-A this season. The New York Mets gain a controllable corner bat in Cole Mathis, age 22. David Peterson gives the Chicago Cubs a durable left-handed innings option immediately. Cole Mathis, age 22, brings the New York Mets a .260/.371/.490 High-A bat. Cole Mathis signed for $1.68 million two years ago and posted a 14.7% walk rate. Watch whether David Peterson steadies the Chicago Cubs rotation before July 31. Related Sports Coverage Giannis Traded to Heat in Blockbuster Bucks Deal Lakers Re-Sign Austin Reaves to Record $185M Deal Titans Give Simmons NFL-Record $105.8M Extension Sources: ESPN, MLB.com, and NBC Sports.
