Weiss missed Wednesday night's game, but is expected to be released from the hospital Thursday.
Rockies manager Walt Weiss underwent an appendectomy surgery - The Denver Post
Patrick Saunders reports that Rockies manager Walt Weiss underwent an emergency appendectomy last night. Weiss is expected to be released from the hospital sometime today, but there is not currently a timetable for his return. Bench coach Tom Runnells is set to manage the team in Weiss' absence.
Lyles exits after liner hits hand; X-rays negative | rockies.com
The x-ray on Jordan Lyles' pitching hand was negative, reports Earl Bloom of MLB.