Braxton Moore, 4, and his sister Madison, 6, of Sacramento, Calif., watch batting practice before the start of an opening day baseball game between the San Francisco Giants and the Colorado Rockies, Friday, April 9, 2021, in San Francisco. (AP Photo/Eric Risberg)

Jeanne Sweet, left, and her sister Erin Sweet, of Sebastopol, Calif., react while seeing their seats and friends in the outfield bleachers before the start of an opening day baseball game between the San Francisco Giants and the Colorado Rockies, Friday, April 9, 2021, in San Francisco. (AP Photo/Eric Risberg)

San Francisco Giants starting pitcher Johnny Cueto works in the first inning of a baseball game against the Colorado Rockies, Friday, April 9, 2021, in San Francisco. (AP Photo/Eric Risberg)

The San Francisco Giants, left, and the Colorado Rockies stand along the baselines during an opening day flyover before their baseball game Friday, April 9, 2021, in San Francisco. (AP Photo/Eric Risberg)

A woman kayaker holds up a sign in McCovey Cove before the start of an opening day baseball game between the San Francisco Giants and the Colorado Rockies, Friday, April 9, 2021, in San Francisco. (AP Photo/Eric Risberg)

Colorado Rockies starting pitcher Austin Gomber works in the first inning of a baseball game against the San Francisco Giants, Friday, April 9, 2021, in San Francisco. (AP Photo/Eric Risberg)

San Francisco Giants starting pitcher Johnny Cueto works in the first inning of a baseball game against the Colorado Rockies, Friday, April 9, 2021, in San Francisco. (AP Photo/Eric Risberg)

Bryan Stow throws out the ceremonial first pitch before an opening day baseball game between the San Francisco Giants and the Colorado Rockies, Friday, April 9, 2021, in San Francisco. Ten years ago Stow was attacked at Dodger Stadium. (AP Photo/Eric Risberg)

San Francisco Giants' Buster Posey is forced out at second base beneath Colorado Rockies shortstop Trevor Story on a fielder's choice hit by Mauricio Dubon during the fifth inning of a baseball game, Friday, April 9, 2021, in San Francisco. (AP Photo/Eric Risberg)

Bryan Stow is greeted by San Francisco Giants assistant coach Alyssa Nakken before throwing out the ceremonial first pitch before a baseball game against the Colorado Rockies, Friday, April 9, 2021, in San Francisco. Ten years ago Stow was attacked at Dodger Stadium. (AP Photo/Eric Risberg)