MIAMI -- Giants pitching coach Dave Righetti experienced a spell of vertigo related to a virus while en route to Miami on the team's chartered flight Thursday. The plane was diverted to Las Vegas so the 55-year-old could be taken to a hospital. He has since been discharged.
Manager Bruce Bochy said before the series opener against the Marlins on Friday that Righetti is doing better and will remain in Las Vegas until doctors clear him to fly.
Bochy does not expect him to join the Giants on this road trip, but he should be back in the dugout when they return to San Francisco next weekend.
In the meantime, bullpen coach Mark Gardner will take charge of the pitchers during this series.
Righetti is in his 15th year as the Giants' pitching coach, the longest tenure among other pitching coaches in San Francisco history.
Maria Torres is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.