Marcelo Mayer homers in first game with Giants after Red Sox trade

Marcelo Mayer made an immediate impact in his first game for the San Francisco Giants after being traded from the Boston Red Sox at the trade deadline. During a rehab assignment in Triple-A Sacramento, Mayer hit a home run in his second at-bat against right-handed pitching. The Red Sox had previously seen Mayer struggle offensively, holding a.223 batting average in 114 games with the team. Acquired by the Giants, he is now trying to showcase his abilities away from Boston, where he faced strong competition for playing time. The Giants hope he can develop further in a more favorable hitting environment.

• 2:28 PMYahoo Sports — Red Sox Fans Will Not Be Happy To See What Marcelo Mayer Did In First Game With New Team