SCOTTSDALE, Ariz. -- And then there were eight. The D-backs made four roster moves Monday, leaving 33 players in the Major League camp and leaving eight more players to trim before Opening Day.
Catcher Hank Conger, right-hander Rubby De La Rosa, outfielder Reymond Fuentes and infielder Kristopher Negron were all reassigned to Minor League camp.

De La Rosa, 28, has been easing back into pitching after a season of elbow issues last year and two stem cell treatments to help him avoid Tommy John surgery. He has played in parts of six seasons, including the last two with the D-backs. He was 14-9 with a 4.67 ERA in 32 starts two years ago, but was limited to 10 starts in 2016, going 4-5 with a 4.26 ERA.
"He'll be going to the Minor Leagues to continue his progression," manager Torey Lovullo said before Monday's game with the Angels. "From what I saw in his bullpen today, he looked very powerful, very strong, looked like he's progressing quickly in the right direction. However, medically, we just have to use caution and know that he's been through some challenging situations with his arm. We're not going to rush that."
Lovullo said the D-backs would keep the other three in camp until Opening Day, noting the need for bodies and the good work Negron and Fuentes have done this spring.
"Those guys deserve to stay here as long as possible," Lovullo said. "They had good camps, and we thought it would be a nice reward to continue learning our concepts and getting some quality at-bats."
Negron, 31, played parts of three seasons with the Reds before spending all of last year at Triple-A Iowa and signing with Arizona last November. He is a career .220 hitter (53-for-241) in 96 games. He was hitting .240 (12-for-50) in 25 Cactus League games through Sunday.
Fuentes, 26, has played parts of two seasons with San Diego and Kansas City and signed with Arizona last December. He played for Puerto Rico in the World Baseball Classic this month, missing a chunk of time from the Cactus League, where he was batting .625 (10-for-16) in 11 games. He is a career .243 hitter (18-for-74) in 36 games.

"Kristopher Negron and Reymond Fuentes were right on the edge of making this team," Lovullo said. "That was a decision that was tough on this group and the front office and the staff, because they played well."
Conger, 29, has not played this spring due to an oblique injury. He played parts of seven seasons with the Angels, Astros, and Rays before signing with Arizona in February. He's a .221 hitter (224-for-1013) with 31 homers and 114 RBIs in 373 big league games.
"With Conger's case, we felt like it gives us a chance to watch him a little bit more," Lovullo said. "We didn't get to see him too much because of his injury. So for different reasons we want to keep those three guys along 'til the end."