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7/18/2014 7:45 P.M. ET

Stiff neck keeps Scutaro out of series-opening lineup

MIAMI -- This time, it wasn't Marco Scutaro's back that kept him out of the Giants' lineup. In fact, manager Bruce Bochy said the second baseman's ailment that kept him out of Friday's series opener against the Marlins was related instead to a stiff neck, which has been bothering Scutaro since Thursday.

Scutaro, who took batting practice, was available to pinch-hit on Friday.

The 38-year-old missed San Francisco's last game prior to the All-Star break on Sunday. He had just come off the 60-day disabled list -- where had spent all season due to a lower back strain -- before last Friday's matchup against the D-backs. Scutaro went 0-for-3 at the plate in his 2014 debut on Saturday while experiencing tightness in his back.

Bochy also said Angel Pagan, another one of his players plagued with back issues, will not return until August, at the earliest. The center fielder, who has been running and otherwise conditioning at the team's facility in Scottsdale, Ariz., has yet to swing a bat.

Pagan received an epidural on July 3 to relieve pains associated with a bulging disk. Prior to that setback in his recovery, he had been scheduled to return from the DL on July 1.

In 63 games this season, Pagan hit .307 with three home runs and 19 RBIs and 11 stolen bases -- which is still a team high.

Giants plane diverted for Righetti's vertigo

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.

Worth noting

Matt Cain was seen wearing a sleeve on his throwing arm. When asked if he was feeling fine, he didn't give a definitive answer: "I'm feeling like I'm feeling."

Bochy, however, elaborated that Cain has been battling bone chips in his throwing elbow all season. After throwing on Thursday, Bochy still expects the right-hander to make his start against the Phillies on Tuesday.

• The Giants announced Friday that they signed 23 of their 2014 Draft picks, as well as four additional undrafted players. Among those, San Francisco agreed to terms with its top 14 picks.

Maria Torres is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.