Manager Tony Vitello said after Tuesday's loss to the Padres that Webb was dealing with knee discomfort during his start, Justice delos Santos of The San Jose Mercury News reports.
Dodgers manager Dave Roberts said Monday that Betts (oblique) is on track to face live pitching in a simulated game Thursday, Fabian Ardaya of The Athletic reports.
Ohtani (2-2) took the loss against Houston on Tuesday, allowing two runs on four hits and no walks while striking out eight batters over seven innings.