Manager Brandon Hyde said Tuesday that Lopez suffered a "significant" sprain in his right ankle that could end his season, Roch Kubatko of MASNSports.com reports.
Lopez exited Monday's relief outing due to right ankle pain, and further evaluations revealed a serious injury. The right-hander appears to be heading to the 10-day injured list, and he might not have enough time to recover in time to return in 2021 with just under a month remaining in the regular season. Right-hander Mike Baumann was recalled from Triple-A Norfolk on Tuesday to take on a bullpen role.