Yu Darvish Has Whirled His Way Back To the Top
Back before the Chicago Cubs decided to go full-on Ebenezer Scrooge, they aggressively pursued top players in free agency to improve their roster. One of those players was Yu Darvish, an ace for the Rangers and Dodgers after seven years of dominating the Japan Pacific League, a feat he accomplished while still a teenager. Darvish was the best pitcher available after the 2017 season and the Cubs signed him to a six-year, $126 million contract, a sum commensurate with his abilities. And unlike his first deal in the majors, Darvish didn’t have to contend with a posting fee; when the right-hander came to the States, the Nippon Ham Fighters got nearly as much ($51.7 million) as he did ($56 million).
The initial returns were not promising. The Cubs won 95 games in 2018 before being bounced in the Wild Card game by the Colorado Rockies, while triceps and elbow issues limited Darvish to just eight games. Those were mostly ineffective games to boot, as his walk rate jumped to career highs, his ERA and FIP ballooned to near five, and he failed to complete the fifth inning in five of his starts. MRIs revealed no structural damage to his arm, but the team was careful; the triceps is important in the arm deceleration phase of a pitcher’s delivery:
Activity of the triceps muscles, as well as activity of the anconeus and wrist flexor muscles, helped the joint’s ligaments apply a compression force during this phase in order to stabilize the elbow and prevent elbow distraction.
Darvish was already a veteran of one Tommy John surgery and the Cubs were rightly conservative about rushing their ace to full-time duty. The first victory of 2019 was just staying healthy, which he achieved; Darvish only missed a single start down the stretch due to forearm pain. But the control wasn’t there in the early-going and a third of the way through the season, his ERA was at 5.40 with an extremely worrying 38 walks in 11 starts. Indeed, even late as Independence Day, Darvish’s ERA was north of five. Read the rest of this entry »