The 49ers have waived linebacker Kiko Alonso with a failed physical designation, per a team press release. Meanwhile, defensive linemen D.J. Jones and Jordan Willis have been placed on the Reserve/COVID-19 list. 
The Niners acquired Alonso earlier this month in the deal that sent Kwon Alexander to the Saints. The trade was mostly done as a salary dump, though they were hoping to get some value out of Alonso (as well as the conditional fifth-rounder).
Alonso started for the Dolphins between 2016-18 and was mostly healthy, averaging more than 115 tackles per season. He was a little less productive for the Saints in 2019 and, unfortunately, ended his season with an ACL tear in the Wild Card round. The 30-year-old has yet to see the field in 2020 and it’s not clear if he’ll be able to suit up for anyone this season.
Last time out, the Niners fell to Alonso’s old squad. Next, they’ll face the Rams in Los Angeles.