The San Diego Padres have agreed to trade All-Star left-hander Drew Pomeranz to the Boston Red Sox, according to the San Diego Union-Tribune.

Boston pitcher Anderson Espinoza is said to go to San Diego for part of the trade, pending medical review, FOX Sports' Ken Rosenthal reports.

#RedSox's willingness to give up Espinoza for Pomeranz not simply reflection of seller's market. Trademark aggressiveness by Dombrowski.

— Ken Rosenthal (@Ken_Rosenthal) July 14, 2016

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Drew Pomeranz trade from #Padres to #RedSox is a 1-for-1 deal, source says.

— Jon Morosi (@jonmorosi) July 14, 2016

Pomeranz, 27, just pitched his first All-Star Game in San Diego on Tuesday. The former Rockies and A's hurler is 8-7 with a 2.47 ERA and 1.06 WHIP in 17 starts this season, and has drawn interest from several teams.