The Giants have claimed right-hander Luis Madero off waivers from the Angels, per an announcement from the Angels. In order to create a roster spot for Madero, the Giants announced that fellow righty Jake Jewell has been designated for assignment. Madero himself was designated for assignment last week when the Angels acquired right-hander Matt Andriese in a trade with the Diamondbacks.
The 22-year-old Madero logged a combined 105 2/3 innings between Class-A Advanced and Double-A in 2019 but struggled with a 5.03 ERA. He did notch more solid rate stats, including 8.3 K/9, 2.6 BB/9 and a 47 percent grounder rate. Scouting reports on Madero peg his curveball as his best pitch and credit him with a low-90s heater as well. Eric Longenhagen and Kiley McDaniel of FanGraphs tabbed him as a potential fifth starter heading into the 2019 season, although that was before the the 6’3″, 185-pound righty endured a rough season.
Jewell, meanwhile, was only just claimed off waivers — also from the Angels organization — at the time the Giants parted ways with Zack Cozart. The 26-year-old has been hit hard in a small sample of 28 big league innings but enjoyed a solid season in the minors in 2018. His 2019 effort was a rough one across the board (6.84 ERA in the Majors, 5.26 in Triple-A), but scouting reports on Jewell have long credited him as a potential two-pitch reliever thanks to his fastball/slider combo. He’ll need to throw more strikes and command the ball within the zone more effectively, however, as both walks and home runs have been an issue for him.
Jewell’s time with the Giants organization could come to a close quickly, although this sort of move has been typical on for president of baseball operations Farhan Zaidi. Both during his time with the Dodgers and so far with the Giants, Zaidi has been willing to frequently turn over the fringes of his 40-man roster, regularly claiming players and quickly designating them for assignment and then seeking to pass them through waivers to keep them without dedicating a 40-man roster spot. That tactic can lead to a dizzying number of minor transactions but also has been an effective way of stockpiling depth.