Mota was a non-roster invitee to the Kansas City Royals camp and did not pitch last season.
The 40-year-old right-hander made 743 career relief appearances with a 3.94 ERA for the Montreal Expos, Los Angeles Dodgers, Florida Marlins, Cleveland Indians, New York Mets, Milwaukee Brewers and Giants.
He was part of the Giants’ World Series championship teams in 2010 and 2012. Mota’s last season in the big leagues was 2012 when he had a 5.23 ERA in 20²⁄³ innings with the Giants.
During the 2012 season, Mota was suspended 100 games for his second violation of the league’s performance-enhancing drug policy. In 2007 while with the Mets, he was suspended 50 games for using performance-enhancing drugs.