Yamaguchi, 32, has spent 14 years playing professionally in Japan. Last season was one of his best years, in which he posted a 16-4 record, 2.78 ERA and 9.6 strikeouts per nine in 181 innings.
He was available to the Blue Jays (and other MLB clubs) this off-season after being posted by his Japanese team, the Yomiuri Giants. Under the posting system, the Giants are entitled to 20 per cent of Yamaguchi’s first $25 million in earnings from the signing club, as Sportsnet’s Shi Davidi recently noted.
Yamaguchi has several years of experience as both a starter and a reliever. If he does become a starter for the Blue Jays, he’d join fellow off-season acquisitions Hyun-Jin Ryu, Tanner Roark, and Chase Anderson in Toronto’s new-look rotation.