Philadelphia Phillies pitcher Jake Arrieta said Wednesday he will likely need right elbow surgery to remove bone spurs that would end his Major League Baseball season.
The 33-year-old right-hander who won the 2015 Cy Young Award as the National League's top pitcher and helped the Chicago Cubs win the 2016 World Series was placed on MLB's 10-day disabled list.
Arrieta, who underwent left knee surgery in January, has a 4.26 earned-run average in 55 starts since signing a three-year deal worth $75 million with the Phillies in 2018.
Zach Eflin will replace Arrieta in a schedule start on Saturday against the San Diego Padres after being moved from the rotation to the relievers' bullpen last month.
Arrieta is 106-75 with a 3.72 earned-run average and 1,318 strikeouts since his 2010 major league debut with Baltimore.
The Phillies are 61-58, level with the New York Mets for third in the National League East division and two games behind the St. Louis Cardinals in a five-team fight for the final National League playoff berth.
Jake Arrieta said Wednesday he might miss the remainder of the Major League Baseball season for the Philadelphia Phillies because he likely needs right elbow surgery to remove bone spurs