PHILADELPHIA (AP) —  The Philadelphia Phillies have lost pitchers Jake Arrieta and David Robertson for the rest of the season, and outfielder Roman Quinn was placed on the 10-day injured list Saturday. Arrieta will have surgery to remove bone chips in his pitching elbow.

The 33-year-old right-hander was 8-8 with a 4.64 ERA in 24 starts, and had been trying to pitch through the injury for the last month.

Robertson, a right-handed reliever, had Tommy John surgery on Thursday and will likely miss all of the 2020 season as well. Signed to a two-year, $23 million contract in the offseason, he was able to pitch just 6 2/3 innings this year.

Quinn strained his right groin trying to beat out a grounder in the eighth inning of the Phillies’ 8-4 victory over the San Diego Padres on Friday night.

Quinn is batting .213 with three doubles, four homers and 11 RBIs in 44 games but was scorching hot in August.

In 13 August games, Quinn is hitting .368/.455/.684 with three homers, seven RBIs, one double, one triple, four stolen bases and a 1.139 OPS.

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Philadelphia activated right-handed reliever Jared Hughes after claiming him off waivers from Cincinnati earlier this week.Hughes went 3-4 with a 4.10 ERA in 47 games with the Reds this season.

(©Copyright 2019 CBS Broadcasting Inc. All Rights Reserved. The Associated Press contributed to this report.)