Vargas' team option was declined by the Phillies on Monday.
Vargas (7-9) was charged with the loss Thursday against the Nationals, surrendering five runs (four earned) on six hits and five walks while striking out three across 4.1 innings.
Vargas (7-8) allowed four runs (two earned) on five hits and two walks while striking out eight across 6.2 innings to earn the win Saturday against the Indians.
Vargas (6-8) allowed five runs (four earned) on three hits with one walk and six strikeouts across three innings while taking a loss against the Red Sox on Sunday.
Vargas allowed four runs (two earned) on six hits and three walks while striking out three across three innings Tuesday against the Braves. He did not factor into the decision.
Vargas is scheduled to start Saturday against the Mets, Matt Gelb of The Athletic reports.
Vargas allowed two earned runs on five hits and three walks while striking out one across six innings Tuesday against the Cubs. He did not factor into the decision.
Vargas will make his first start as a Philly on Friday against the White Sox, Todd Zolecki of MLB.com reports.
Vargas was traded from the Mets to the Phillies in exchange for minor-league catcher Austin Bossart on Monday, Jeff Passan of ESPN.com reports.
Vargas (6-5) allowed three runs on six hits with three walks and five strikeouts across 5.2 innings while earning a victory against the Pirates on Sunday.