data-mm-id=”_u4qo6mhpp”>Barry Zito felt like the 46,889 fans who packed the stands for the final Oakland A's game at the Oakland Coliseum on Thursday. He showed up because he needed closure.So when the former A's left-hander got a call from his former club to sing the national anthem, he couldn't pass up the offer.RELATED: Tone-deaf John Fisher wants A's fans' forgiveness for moving team from Oakland"I came out for 24 hours and (had) to be a part of this," Zito told Jenny Cavnar and Dallas Braden on NBC Sports California. "This is so special. I love seeing all the fans. All the green and gold, man."Former A's ace Barry Zito sings the national anthem 🇺🇸 pic.twitter.com/wDDw9Vwf3Z— A's on NBCS (@NBCSAthletics) …