Motohiro Shima met with Rakuten Eagles’ President Yozo Tachibana on October 18. He later spoke to the media after practices and said he informed Tachibana that he was not going to exercise his free agent option and was going to play for the Eagles next year. He decided to stay because he appreciated everything the organization did for him over the years.
[UPDATE @ 8:19am]
Shima told reporters that he felt if he was going to exercise his free agent option, this would be his last chance. He added that since he was not going to exercise his option, he was currently thinking about becoming a Rakuten lifer.
Source: Daily Sports 10/19/2016