Rivero, a Venezuela native, had spent his entire career in the Kansas City organization. Originally signed as an amateur free agent during the 2015-16 signing period, he played parts of six seasons in the minors. Rivero hasn’t hit much over that stretch, compiling a .247/.295/.357 line in a bit more than 1300 minor league plate appearances. He’s made contact at a roughly average rate but rarely walks and only has 20 professional home runs.
Despite the tepid offensive output, he played his way onto the 40-man roster over the 2020-21 offseason based on the strength of his defensive reputation. Kansas City kept him on hand as a depth option for the last two years, getting him into 34 combined contests. Rivero has managed only a .167/.236/.197 line in very sparse looks against big league pitching. He spent the bulk of the 2022 season at Triple-A Omaha, where he posted a .218/.294/.410 showing in 174 trips to the plate.
At the end of the season, Kansas City designated Rivero for assignment as part of a 40-man roster shuffle. They cut him loose, but he fairly quickly finds a new job. Chicago’s first-year skipper Pedro Grifol has spent the past decade in the K.C. organization, getting plenty of work with the team’s catchers in particular. That connection surely helped Rivero find this next opportunity.
The White Sox look likely to give Yasmani Grandal another shot to bounce back in the final season of his four-year contract. Carlos Pérez and Seby Zavala are on the 40-man roster as backup possibilities. Rivero looks likely to head to Triple-A Charlotte as a depth option behind that trio.