Braves right-hander Reynaldo Lopez is moving to the bullpen "for now" to work out a mechanical flaw in his delivery, Atlanta manager Walt Weiss told reporters Sunday.

Lopez began the season as Atlanta's No. 2 starter after making just one start in 2025 before undergoing season-ending shoulder surgery. He had a 2.18 ERA through four starts this season before he gave up four runs on five hits and three walks in one inning of last Tuesday's 11-4 loss at Washington.

"We see him as a starter," Weiss said. "He's working through some things, delivery wise, that type of thing, and he's getting right there. And when he's right, he's one of our best starters. He was our No. 2 coming out of camp, even with some of the issues at the end of spring training.

"So we see him as a starter long term, but right now, trying to iron some things out. He's going to help us out of the pen in the short term."

Lopez has extensive experience both as a starter and reliever at the major league level. He's posted a 48-55 career record and 3.93 ERA over 273 appearances (128 starts) over 11 seasons.

He earned his first All-Star nod and finished 11th in National League Cy Young Award voting during his first season with the Braves in 2024 when he finished with a 1.99 ERA, 148 strikeouts and 42 walks over 135 2/3 innings.

Atlanta kept 22-year-old right-hander JR Ritchie on its major league roster after he allowed two runs on five hits and struck out seven over seven innings in his major league debut Thursday vs. Washington. He's set to make his first home start Wednesday against Detroit.

The Braves are also expecting right-hander Spencer Strider to make his season debut as soon as this weekend at Colorado after he started the season on the injured list with a strained oblique.