Hernandez was diagnosed with a low-grade UCL sprain Tuesday and won't throw for at least four weeks, Evan Grant of The Dallas Morning News reports.

EDGE Analysis

Hernandez isn't currently expected to require surgery, but he'll likely miss a meaningful portion of the regular season. He won't throw until early April at the earliest and will need several weeks to build his arm back up once he's cleared to do so, making late May the most realistic target date for Hernandez to make his 2021 debut. That's bad news for the Rangers, as Hernandez was expected to be at minimum a high-leverage reliever, and at best, the team's top candidate to close games. Jose Leclerc now seems to have a clearer path to reclaiming that role after he missed most of last season due to shoulder issues.