The Los Angeles Dodgers placed right-hander River Ryan on the 15-day injured list on Sunday due to a right forearm injury and recalled fellow rookie right-hander Landon Knack from Triple-A Oklahoma City.

Ryan, who turns 26 on Saturday, left the field in the fifth inning of his start against the Pittsburgh Pirates on Saturday. He allowed four hits and struck out four players in 4 2/3 scoreless innings as the Dodgers earned a 4-1 victory over All-Star pitcher Paul Skenes (6-2) and the Pirates.

Ryan felt pain in his right forearm in the third inning, he said, and used a massage gun to loosen it up between innings. But his reaction to a couple of pitches to Michael A. Taylor in the fifth inning gave him away, and his coaches took him out of the game.

“I was not going to give up the game at all,” Ryan said Saturday night. “I wanted to finish it. But they saw me grimacing a little on the mound and they didn’t want to take any chances. So they decided to call it off right then and there.”

Ryan, whose rise in the organization coincided with injuries that decimated the Dodgers’ pitching staff, is 1-0 with a 1.33 ERA, nine walks and 18 strikeouts in 20 1/3 innings in four starts. He is the organization’s fourth-best prospect, according to MLB Pipeline.

“…I just feel bad for River,” said Dodgers manager Dave Roberts, “because he pitched such a good game and just got excited and felt his energy.”

The 27-year-old Knack has a 2-2 record with a 3.07 ERA, 12 walks and 42 strikeouts in nine games (eight starts) in 44 innings since his major league debut on April 17.

The Dodgers selected him in the second round of the 2020 MLB Draft out of East Tennessee State.

–Field level media