Matt Cain and the San Francisco Giants couldn't have picked a worse time to be facing the San Diego Padres.San Francisco Giants starting pitcher Matt Cain throws against the San Diego Padres during the first inning of a baseball game on Friday, July 4, 2014, in San Diego.San Diego Padres' Alexi Amarista points skyward as he rounds the bases after hitting a home run off of San Francisco Giants pitcher Matt Cain in the third inning of a baseball game on Friday, July 4, 2014, in San Diego.San Diego Padres starting pitcher Eric Stults throws against the San Francisco Giants during the first inning of a baseball game on Friday, July 4, 2014, in San Diego.San Diego Padres starting pitcher Eric Stults throws against the San Francisco Giants during the first inning of a baseball game on Friday, July 4, 2014, in San Diego.