Philadelphia Phillies right-hander Aaron Nola was placed on the 10-day injured list Friday with a sprained right ankle and the club recalled right-hander Daniel Robert from Triple-A Lehigh Valley.

Nola, 31, has struggled this season, going 1-7 with a 6.16 ERA in nine starts. He gave up nine runs on 12 hits, both career highs, in 3 2/3 innings Wednesday against the St. Louis Cardinals, and has allowed at least four earned runs in five of his starts.

In 11 seasons with the Phillies, Nola is 105-86 with a 3.78 ERA in 277 starts. He finished as high as third in National League Cy Young Award voting in 2018 when he made his lone All-Star Game appearance.

Robert, 30, did not give up a run while retiring one batter in one appearance with the Phillies on Wednesday. He had been optioned Thursday but can return immediately to replace an injured player.

According to mlb.com, right-hander Mick Abel will be promoted to fill the Phillies’ rotation void on Sunday, while making his major league debut, before right-hander Taijuan Walker returns takes over that starting spot next week.